| Day | Time | Temp. ºC | Salinity ppt |
| 1 | 8:24 | 7.7 | 31.7 |
| 2 | 8:55 | 7.8 | 31.6 |
| 3 | 7:14 | 7.8 | 31.4 |
| 4 | 6:53 | 7.7 | 31.6 |
| 5 | 7:59 | 7.8 | 31.4 |
| 6 | 9:15 | 7.8 | 31.5 |
| 7 | 10:32 | 7.9 | 31.5 |
| 8 | 11:12 | 7.9 | 31.7 |
| 9 | 14:00 | 7.8 | 32.4 |
| 10 | 15:47 | 7.9 | 32.0 |
| 11 | 16:53 | 7.9 | 32.8 |
| 12 | 17:06 | 7.9 | 32.6 |
| 13 | 19:33 | 7.7 | 32.2 |
| 14 | |||
| 15 | |||
| 16 | 7:18 | 7.3 | 31.6 |
| 17 | 8:14 | 7.4 | 31.5 |
| 18 | 7:55 | 7.5 | 31.5 |
| 19 | 9:10 | 7.7 | 31.4 |
| 20 | 10:49 | 7.8 | 31.6 |
| 21 | 13:02 | 8.0 | 31.7 |
| 22 | 16:19 | 8.1 | 31.6 |
| 23 | 14:56 | 7.9 | 31.9 |
| 24 | 15:44 | 7.9 | 31.9 |
| 25 | 16:31 | 8.0 | 31.8 |
| 26 | 17:23 | 7.9 | 31.8 |
| 27 | 18:25 | 8.0 | 31.8 |
| 28 | 8:16 | 7.9 | 31.7 |
| 29 | 8:10 | 7.9 | 31.5 |
| 30 | 6:35 | 7.8 | 31.8 |
| 31 | 6:44 | 7.7 | 31.7 |
Category Archives: Seawater Data
February Daily Sea Surface Temperature and Salinity Observations
Day Time Temp ºC Salinity ppt
1 8:03 8.1 31.3
2 8:21 7.7 31.4
3 8:37 7.7 31.2
4 8:49 7.6 30.9
5 9:06 7.8 31.1
6 10:08 7.9 31.2
7 10:37 7.9 31.0
8 11:34 8.1 31.1
9 12:35 8.1 31.1
10 13:58 8.2 31.3
11 15:16 8.2 31.2
12 16:59 8.1 31.5
13 17:45 8.0 31.6
14 7:57 7.9 32.0
15 8:15 7.9 31.4
16 7:49 7.9 31.5
17 8:16 7.8 31.5
18 8:37 7.7 31.3
19 9:12 7.8 31.3
20 10:03 7.8 31.2
21 11:47 7.9 31.1
22 12:04 8.0 31.2
23 13:21 7.9 31.6
24 14:15 7.9 32.0
25 15:03 7.9 31.9
26 16:22 8.1 31.8
27 16:44 8.0 31.5
28 17:49 7.9 31.3
29 7:27 7.8 31.7
Seawater Observations for January
| Day | Time | Temp ºC | Salinity ppt |
| 1 | 9:15 | 8.3 | 32.3 |
| 2 | 9:18 | 8.2 | 32.1 |
| 3 | 9:39 | 8.3 | 32.0 |
| 4 | 9:43 | 8.1 | 32.0 |
| 5 | 10:00 | 8.2 | 31.8 |
| 6 | 10:16 | 8.2 | 31.7 |
| 7 | 10:27 | 8.3 | 31.6 |
| 8 | 10:31 | 8.2 | 31.9 |
| 9 | 10:57 | 8.2 | 31.9 |
| 10 | 14:44 | 8.2 | 31.4 |
| 11 | 12:28 | 8.2 | 31.9 |
| 12 | |||
| 13 | 14:24 | 7.7 | 31.9 |
| 14 | 14:42 | 7.6 | 31.9 |
| 15 | |||
| 16 | 8:13 | 7.6 | 32.1 |
| 17 | 8:33 | 7.5 | 32.1 |
| 18 | 8:55 | 7.9 | 32.0 |
| 19 | 10:33 | 7.9 | 31.7 |
| 20 | 9:55 | 8.0 | 31.6 |
| 21 | 10:13 | 8.0 | 31.5 |
| 22 | 10:30 | 7.9 | 31.5 |
| 23 | 11:02 | 8.0 | 31.6 |
| 24 | 12:18 | 8.1 | 31.7 |
| 25 | 12:24 | 8.1 | 31.7 |
| 26 | 13:03 | 8.2 | 31.6 |
| 27 | 13:46 | 8.1 | 31.6 |
| 28 | 14:26 | 8.1 | 31.5 |
| 29 | 15:10 | 8.2 | 31.5 |
| 30 | 16:11 | 8.0 | 31.5 |
| 31 | 8:20 | 8.1 | 31.5 |
*The observations are missing from January 12 and 15 because the wind and large waves prevented me from safely accessing the jetty.
December Seawater Observations
Day Time Temp ºC Sal ppt
1 8:00 8.3 32.0
2 8:00 8.3 32.1
3 8:00 8.5 32.0
4 8:00 8.4 31.9
5 8:15 8.5 32.0
6 9:15 8.4 32.0
7 10:00 8.4 31.9
8 11:30 8.3 31.9
9 11:30 8.4 32.0
10 12:00 8.4 32.0
11 12:30 8.5 32.1
12 13:00 8.4 31.9
13 14:00 8.4 32.1
14 14:30 8.4 32.1
15 15:00 8.3 32.2
16 15:30 8.2 32.2
17 15:45 8.3 32.1
18 8:00 8.2 32.2
19 8:00 8.2 32.1
20 9:00 8.3 32.2
21 9:00 8.2 32.2
22 10:05 8.3 32.2
23 11:03 8.3 32.0
24 11:48 8.3 32.2
25 12:10 8.2 32.1
26 12:00 8.2 32.2
27 12:27 8.3 32.2
28 13:20 8.3 32.1
29 13:36 8.3 31.9
30 9:19 8.3 32.0
31 9:22 8.3 31.9
Archive of Salinity Recorded at Race Rocks 1926 to Present
Year Jan Feb March April May June July Aug Sept Oct Nov Dec
1936 ——- ——- ——— ——— ——— ——— ——- ——- ———– 31.36 31.65 31.54
1937 31.66 31.76 31.55 31.36 31.26 31.10 30.94 31.13 31.18 31.29 30.88 30.82
1938 30.60 30.70 30.80 31.21 31.11 31.18 30.87 31.34 31.24 31.65 31.54 31.41
1939 31.07 31.18 31.44 31.53 31.31 31.05 31.03 30.78 31.34 31.77 —— – 30.93
1940 30.76 30.78 30.60 30.92 30.65 30.60 —— —– —– ——- ——- ——- ——-
1941 —— —— —— —— —— 31.49 31.50 31.25 31.49 31.62 31.45 31.31 30.97
1942 31.18 31.00 31.44 31.58 31.56 31.62 31.25 31.11 31.32 31.80 31.73 31.46
1943 31.43 31.33 31.69 31.28 31.53 31.51 31.34 31.12 31.20 31.46 31.53 31.60
1944 31.60 31.57 31.80 31.91 31.80 32.10 31.81 31.89 31.77 31.68 31.70 31.49
1945 31.37 31.21 31.51 31.58 31.78 31.65 31.60 31.54 31.67 31.82 31.88 31.56
1946 31.12 31.30 31.19 31.43 31.39 31.06 30.76 30.95 31.44 31.54 31.80 31.26
1947 31.69 31.24 31.53 31.72 31.63 31.28 31.43 31.08 31.48 31.66 31.24 31.34
1948 31.07 31.42 31.40 31.53 31.32 30.83 30.46 31.13 31.12 31.19 31.45 31.03
1949 31.40 31.56 31.34 31.59 31.37 31.29 31.88 31.61 31.45 31.60 31.50 31.08
1950 31.14 31.12 30.79 31.01 31.34 31.31 30.95 31.06 31.20 31.05 30.91 30.34
1951 30.21 30.22 30.69 31.34 31.54 31.13 31.37 31.27 31.61 31.67 31.53 31.20
1952 31.39 31.00 31.33 31.60 31.65 31.30 31.12 31.47 31.48 31.44 31.79 31.58
1953 30.79 30.52 31.38 31.45 31.44 31.21 31.20 31.00 31.14 31.37 31.26 30.63
1954 30.47 30.56 30.76 31.06 31.41 31.41 30.74 30.76 30.67 30.87 30.73 30.49
1955 30.67 30.77 31.37 31.41 31.57 31.27 31.27 30.89 30.94 31.39 30.78 30.79
1956 30.50 31.10 31.02 31.21 31.27 30.85 30.56 31.15 31.33 31.28 31.14 31.01
1957 31.22 31.30 31.17 31.28 31.44 31.20 31.15 31.35 31.24 31.12 31.35 31.29
1958 31.05 30.82 30.89 31.01 31.01 30.78 30.53 31.04 31.22 31.05 30.96 30.86
1959 30.75 30.66 30.99 31.04 31.20 31.19 30.57 30.83 31.14 30.99 31.07 30.91
1960 30.99 30.85 31.16 31.14 31.13 31.06 30.66 31.02 31.04 31.21 31.15 30.84
1961 30.63 30.65 30.43 30.75 30.99 30.52 30.60 31.08 31.42 31.56 31.52 31.35
1962 31.22 31.29 31.49 31.66 31.44 31.52 31.28 31.31 31.07 31.48 31.13 30.74
1963 30.75 30.98 31.04 31.08 31.19 31.26 31.16 31.18 31.36 31.33 31.00 30.79
1964 30.67 30.70 31.15 31.42 31.68 31.49 30.85 30.75 31.14 31.22 31.31 31.16
1965 30.47 30.86 31.21 31.61 31.51 31.24 31.65 31.55 31.40 31.77 31.25 30.98
1966 30.83 30.87 31.03 31.13 31.35 31.45 31.35 31.14 31.42 31.50 31.62 31.07
1967 30.86 30.75 30.94 30.98 31.36 31.08 30.56 30.92 31.05 31.26 30.83 31.15
1968 30.93 30.64 30.69 30.85 31.28 31.02 30.64 30.96 31.09 31.23 31.01 30.67
1969 30.55 30.75 30.94 31.08 31.06 30.83 30.86 31.20 31.07 31.12 31.42 31.15
1970 31.00 30.74 31.05 31.50 31.71 31.24 31.19 31.65 31.79 32.10 31.84 31.42
1971 31.25 31.04 31.10 30.91 31.06 31.12 30.81 30.59 30.73 31.21 31.57 31.05
1972 30.94 30.89 30.05 30.27 30.69 30.33 29.82 30.40 30.84 31.37 31.80 31.53
1973 31.25 31.09 31.45 31.66 31.94 31.77 31.30 31.62 31.83 31.95 31.64 31.12
1974 31.14 30.92 30.97 31.21 31.55 31.06 30.92 30.53 31.32 31.75 32.11 31.81
1975 31.75 31.61 31.59 32.00 32.14 32.17 31.82 31.69 31.69 32.12 31.42 30.91
1976 30.85 31.07 31.08 31.34 31.56 31.65 31.51 31.34 30.72 30.72 31.13 31.26
1977 31.20 31.40 30.86 31.59 31.46 31.24 31.54 30.97 31.31 31.67 31.52 30.73
1978 30.75 30.67 30.73 30.91 31.29 31.29 31.15 31.53 31.20 31.18 31.25 31.69
1979 31.44 31.24 31.41 31.60 31.56 31.59 31.45 31.63 31.52 31.45 31.45 31.50
1980 31.07 31.48 31.38 31.71 31.71 32.01 31.92 31.78 31.93 31.94 32.06 31.75
1981 31.15 31.41 31.16 31.62 31.88 31.90 32.15 32.25 32.29 32.03 31.61 31.25
1982 31.20 31.08 30.77 31.07 31.55 31.71 31.57 31.29 31.33 31.42 31.21 30.85
1983 30.87 30.57 30.45 30.81 30.93 31.03 31.10 31.01 31.08 31.27 31.06 30.58
1984 30.46 30.54 30.46 30.87 31.35 31.34 31.11 31.46 31.35 31.27 31.02 31.08
1985 31.18 31.21 31.81 31.63 31.93 31.60 31.57 31.87 32.05 31.96 31.45 31.72
1986 31.54 31.16 30.94 31.27 31.64 31.25 31.36 31.17 31.67 31.80 31.82 31.50
1987 30.98 31.02 31.03 31.29 31.43 31.54 31.22 31.67 31.83 31.72 31.87 31.44
1988 31.34 31.40 31.61 31.77 31.70 31.67 31.73 31.83 31.78 31.90 31.59 31.41
1989 31.44 31.42 31.46 31.39 31.89 31.99 31.23 32.47 31.81 32.55 32.12 31.71
1990 31.80 31.54 31.37 31.57 31.76 31.37 31.81 31.21 31.29 31.84 31.43 30.56
1991 30.99 30.95 30.92 30.87 31.60 30.85 30.98 31.26 31.07 31.21 31.46 31.17
1992 30.96 30.51 30.75 31.12 30.90 31.00 30.92 30.56 30.88 31.12 30.91 30.52
1993 30.62 30.35 30.51 30.83 30.71 30.21 30.50 30.76 30.78 30.97 31.10 30.85
1994 30.84 30.64 30.73 31.78 31.53 31.85 31.04 31.34 31.22 31.44 31.57 31.29
1995 30.83 30.76 30.79 30.82 31.02 31.09 30.82 31.23 31.32 31.55 31.25 30.40
1996 30.26 30.20 30.36 30.71 30.84 31.04 30.44 30.88 31.18 31.33 31.27 30.76
1997 30.53 30.41 30.73 30.64 30.43 30.58 30.34 29.90 30.74 30.58 30.49 30.52
1998 30.62 30.39 30.50 30.57 31.08 30.66 30.89 30.92 31.04 31.34 31.20 30.79
1999 30.58 30.32 30.58 30.68 30.73 30.72 30.24 30.29 30.06 30.80 31.26 30.71
2000 30.82 30.80 30.91 31.17 31.07 30.90 30.55 30.70 30.78 30.96 31.25 31.40
2001 31.37 31.19 31.67 31.82 31.79 31.81 31.42 31.37 31.32 31.61 31.49 31.07
2002 30.84 30.81 31.17 31.35 31.41 31.31 30.82 30.76 31.28 31.38 31.75 31.43
2003 31.01 31.05 30.91 30.73 31.17 30.80 31.16 31.21 31.45 31.69 31.05 31.09
2004 30.92 30.71 30.99 31.15 31.25 31.38 31.15 31.38 31.48 31.15 31.17 31.11
2005 30.92 30.58 31.05 31.12 31.11 31.15 30.83 30.83 31.16 31.41 31.17 31.21
2006 30.80 30.23 31.19 31.21 31.08 31.09 30.81 31.00 31.48 31.54 31.15 30.98
2007 30.65 30.80 30.84 30.83 30.82 30.88 30.65 30.48 30.79 31.23 31.09 31.10
2008 30.76 30.86 31.06 31.20 31.50 31.19 31.31 31.30 31.13 31.53 31.23 31.53
2009 31.25 31.52 31.43 30.04 30.50 31.31 31.23 31.39 30.97 31.32 31.27 30.90
2010 30.95 30.84 31.04 30.98 31.32 31.00 30.62 31.01 31.23 31.26 31.47 31.28
2011 30.57 30.92 30.85 30.75 30.76 30.75 30.34 30.46 30.86 30.99 31.47 31.20
2012 31.30 31.31 31.06 30.84 30.69 31.12 30.56 30.39 30.59 31.10 30.92 30.54
2013 30.54 31.10 31.27 31.27 31.42 31.09 30.26 31.09 31.00 30.97 31.29 31.45
2014 31.49 31.43 31.01 30.89 31.06 30.54 30.47 30.42 31.00 31.25 30.53 30.39
2015 29.99 30.34 30.47 30.48 30.90 30.77 31.11 31.78 31.46 31.62 31.62 31.36
2016 31.31 30.91 30.74 30.82 30.94 30.88 30.91 30.88 31.66 31.87 31.45 31.62
2017 31.59 31.34 31.31 31.19 31.17 30.99 30.99 31.33 31.67 32.01 31.83 31.39
2018 31.35 31.14 31.30 30.96 31.22 30.72 29.93 30.37 30.93 31.10 31.12 30.96
2019 30.67 ——- 30.85 ——- ——- 31.25 31.78 31.93 —— – —— – —– —
Year -Jan — Feb -Mar -Apr -May -Jun – Jul -Aug – Sep – Oct – Nov – Dec
Archive of Sea Water Temperatures at Race Rocks 1921-Present
file created: 10-Oct-2019 14:51:44
Monthly Sea Surface Temperature
Race Rocks 48.2996 123.5318
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1921 999.99 7.13 7.39 7.75 8.53 9.57 10.31 10.53 10.35 9.88 9.21 8.25
1922 6.49 6.20 6.61 7.55 8.35 9.54 10.53 10.34 10.25 9.37 8.42 7.15
1923 7.11 6.46 6.71 7.64 8.61 9.37 10.38 10.60 10.63 9.67 8.72 7.96
1924 7.13 7.39 7.72 7.97 9.05 9.83 10.51 10.37 10.28 9.28 8.83 7.36
1925 6.66 6.91 7.36 8.07 9.22 10.17 11.16 10.86 10.24 9.27 8.39 8.20
1926 7.90 8.04 8.64 9.25 10.10 10.72 11.18 10.90 10.57 9.82 9.15 8.55
1927 7.65 7.44 7.83 8.07 8.86 9.80 10.57 10.91 10.41 9.70 8.67 7.60
1928 6.93 7.33 7.90 8.62 9.79 10.29 10.82 11.00 10.39 9.20 8.62 7.92
1929 7.16 6.41 7.13 7.86 9.07 9.83 10.82 10.82 10.81 9.86 8.84 7.88
1930 6.58 6.66 7.15 8.30 9.38 10.06 10.66 10.89 10.61 9.50 8.65 8.08
1931 7.90 7.90 8.25 8.85 9.90 10.62 11.57 11.18 10.73 9.66 8.64 7.75
1932 7.12 6.83 7.33 8.24 9.33 10.44 10.82 10.98 10.74 9.65 8.92 7.74
1933 7.14 6.73 7.12 8.08 9.14 10.26 10.59 11.53 10.12 9.68 8.64 7.72
1934 7.87 7.99 8.39 9.23 10.04 10.88 10.97 11.70 10.71 9.72 9.25 8.41
1935 7.29 7.27 7.51 7.81 9.21 10.20 10.58 10.59 10.77 9.71 8.23 8.15
1936 7.90 6.76 7.05 7.89 9.32 10.47 11.30 11.32 10.52 10.13 8.62 7.99
1937 6.62 6.49 7.73 8.74 9.95 10.92 11.77 11.53 10.91 9.93 8.51 8.19
1938 7.44 7.29 8.19 9.41 10.63 12.34 12.74 11.91 11.10 9.93 8.64 7.51
1939 7.42 6.67 7.13 8.64 10.32 11.43 12.20 11.15 11.47 9.75 —- 8.58
1940 7.98 8.28 9.06 10.09 11.49 11.69 —— —— ——- ——- —– ——
1941 —– —– —– —– 10.07 10.54 11.29 11.05 10.66 9.97 9.07 8.60
1942 7.99 7.91 7.85 8.59 9.70 9.87 10.61 11.03 10.34 9.52 8.44 7.92
1943 6.83 6.71 7.16 8.25 8.89 10.03 10.35 10.68 10.39 9.62 9.06 8.13
1944 7.72 7.54 7.37 8.06 9.29 10.58 11.09 10.92 10.58 9.67 9.24 8.13
1945 7.87 7.79 7.64 8.02 8.87 9.86 10.16 10.58 10.09 9.52 8.18 8.10
1946 7.80 7.38 7.71 8.16 9.48 10.28 10.78 10.81 10.33 9.50 8.16 7.78
1947 7.13 7.08 7.77 8.47 9.53 10.48 10.67 11.00 10.57 9.92 9.12 7.96
1948 7.60 6.97 7.26 7.92 9.02 10.28 10.86 10.74 10.48 9.55 8.21 7.08
1949 6.15 6.13 6.97 8.31 9.45 10.20 10.37 10.30 10.52 9.54 8.77 7.88
1950 6.25 5.87 6.65 7.75 8.72 9.48 10.10 10.43 10.31 9.32 8.58 8.08
1951 7.53 6.95 6.72 8.12 9.25 10.31 10.45 11.09 10.93 9.58 8.53 7.76
1952 6.97 7.13 7.64 8.29 9.02 9.69 10.48 10.54 10.23 9.81 8.69 7.95
1953 7.85 7.96 7.69 8.16 9.33 9.82 10.64 11.07 10.62 9.94 9.35 8.56
1954 7.16 7.35 7.55 7.97 8.80 9.32 9.93 10.08 10.07 9.43 9.16 8.46
1955 7.53 7.20 6.78 7.52 8.42 9.38 9.81 10.26 10.00 9.00 7.58 6.70
1956 6.72 6.43 6.35 7.69 8.79 9.69 10.26 10.46 10.17 9.22 8.12 7.12
1957 6.39 6.24 7.25 8.13 9.38 10.10 10.35 10.51 10.59 9.82 8.90 8.35
1958 8.09 8.31 8.66 9.39 10.38 10.77 11.55 11.56 11.04 9.97 8.77 8.15
1959 7.63 7.45 7.93 9.12 9.77 10.50 11.32 11.08 10.51 9.73 8.37 7.82
1960 7.17 7.52 7.52 8.63 9.67 10.34 11.43 10.80 10.13 9.53 8.67 7.98
1961 7.99 8.21 8.41 8.86 9.41 10.36 11.00 11.32 10.67 9.45 8.30 7.51
1962 7.21 7.36 7.37 8.39 9.33 10.05 10.47 10.53 10.60 10.08 9.41 8.75
1963 7.53 7.55 7.87 8.50 9.68 10.25 10.50 10.85 10.62 10.32 9.99 8.76
1964 8.26 8.00 7.77 8.25 8.85 9.66 10.30 10.50 10.07 9.41 8.34 7.46
1965 6.92 7.11 7.28 8.00 8.90 9.83 10.07 10.21 10.32 9.70 9.21 8.52
1966 7.72 7.61 7.75 8.54 9.05 9.12 10.63 10.75 10.17 9.57 8.76 8.64
1967 7.95 7.75 7.62 8.15 8.91 9.64 10.34 10.59 10.53 9.78 9.15 8.04
1968 7.40 7.36 8.04 8.37 8.78 9.50 10.24 10.25 10.45 9.36 8.82 7.81
1969 6.53 6.39 7.23 8.12 9.13 10.21 10.47 10.51 9.88 9.28 8.73 8.16
1970 7.59 7.78 8.00 8.08 8.76 9.64 10.26 10.30 10.09 9.06 8.38 7.59
1971 7.10 6.94 6.72 7.57 8.58 9.16 10.07 10.67 10.43 9.34 8.30 7.37
1972 6.47 6.29 6.92 7.68 8.82 9.57 10.56 10.69 10.30 9.15 8.47 7.37
1973 7.05 7.27 7.98 8.45 8.70 9.29 10.14 10.40 10.09 9.25 8.25 8.04
1974 7.28 7.24 7.36 8.20 8.56 9.74 10.07 10.93 10.65 9.78 8.61 8.26
1975 7.33 6.81 7.23 7.73 8.73 9.48 10.20 10.42 10.41 9.62 9.28 7.85
1976 7.27 7.07 7.01 7.85 8.75 9.37 10.14 10.16 10.09 9.44 8.69 8.13
1977 7.63 7.98 8.09 8.35 8.83 9.79 9.97 10.89 10.31 9.29 8.62 7.97
1978 7.66 7.96 8.34 8.99 9.45 10.38 10.49 10.91 10.59 9.81 8.22 7.37
1979 6.58 6.90 7.57 8.38 9.54 10.01 10.90 10.77 10.51 9.87 9.08 8.61
1980 7.79 7.66 7.97 8.69 9.50 9.52 10.66 10.95 10.52 9.96 9.30 8.61
1981 8.31 8.39 8.87 9.24 9.47 9.91 10.35 10.59 10.21 9.73 9.38 8.60
1982 7.25 7.51 8.00 8.88 9.99 10.74 11.42 11.80 11.41 10.38 8.81 8.35
1983 8.63 8.67 9.36 10.07 10.65 11.33 11.79 12.46 11.49 10.30 9.54 7.77
1984 7.53 7.86 8.43 9.07 9.74 10.34 11.42 11.60 10.66 9.77 8.56 6.99
1985 6.82 6.88 7.25 8.20 9.63 10.62 11.56 11.64 10.83 9.63 6.89 6.44
1986 7.05 6.68 8.08 8.43 9.48 11.07 10.95 11.84 10.88 9.82 8.46 7.88
1987 7.61 7.99 8.39 8.98 9.82 10.68 11.15 11.57 11.14 10.07 9.08 8.25
1988 7.46 7.53 7.58 8.62 9.70 10.49 11.07 11.41 10.62 9.63 8.77 7.91
1989 7.01 5.87 6.83 8.27 9.51 10.80 11.31 11.24 11.09 9.96 8.96 8.23
1990 8.18 7.72 8.24 9.08 9.90 10.87 11.88 12.14 12.18 10.79 9.97 8.22
1991 7.13 7.80 7.98 8.43 9.79 9.78 10.83 11.09 11.24 10.14 8.93 8.31
1992 7.97 8.18 9.50 9.51 10.26 10.80 11.13 11.45 11.02 10.01 9.10 7.81
1993 6.71 6.79 7.68 8.70 9.78 10.85 11.07 11.20 11.00 10.19 8.58 7.92
1994 8.05 7.46 8.61 9.31 10.13 10.62 11.63 11.59 11.36 10.75 9.38 8.41
1995 8.27 8.63 8.86 9.22 10.21 11.21 11.88 11.53 11.38 10.26 9.42 8.91
1996 8.26 7.87 8.47 9.22 10.06 10.41 11.51 11.50 10.59 9.91 8.76 7.68
1997 7.75 7.95 8.10 9.02 10.35 10.98 11.77 12.26 11.66 11.39 10.00 9.31
1998 8.75 9.28 9.77 10.00 10.44 11.41 11.78 12.34 12.11 10.70 9.87 9.00
1999 8.07 7.80 8.17 8.91 9.58 10.48 11.12 11.57 11.91 10.14 9.01 8.52
2000 7.57 7.74 8.20 9.11 10.08 11.16 11.35 11.72 11.44 10.36 9.02 8.02
2001 7.93 7.73 8.10 8.80 9.75 10.68 11.33 11.41 11.40 10.23 9.25 8.36
2002 8.11 7.91 7.79 8.80 9.46 10.54 11.28 11.78 11.36 10.08 9.09 8.84
2003 8.87 8.54 8.74 9.29 9.96 10.98 11.39 11.49 11.41 10.93 8.99 8.47
2004 7.87 7.91 8.34 9.11 10.46 11.10 11.87 11.97 11.30 10.65 9.49 8.67
2005 7.75 8.01 8.84 9.48 10.71 11.22 11.69 12.17 11.50 10.40 9.53 8.40
2006 8.61 8.49 8.41 8.75 10.08 10.87 11.66 12.09 11.49 10.55 9.29 8.54
2007 7.84 7.78 7.86 8.95 10.03 10.19 11.23 11.66 11.03 10.01 8.97 8.03
2008 7.46 7.33 7.68 8.06 9.36 9.78 10.84 11.30 11.16 10.14 9.39 7.87
2009 7.29 7.20 7.46 8.35 9.54 10.39 11.44 11.74 11.80 10.62 9.35 7.70
2010 8.11 8.69 9.12 8.96 9.45 10.36 11.16 11.93 11.08 10.37 8.98 8.06
2011 7.77 7.49 7.77 8.53 9.32 10.35 10.76 11.38 11.17 10.14 8.66 8.01
2012 7.29 7.35 7.63 8.73 9.82 9.76 10.37 10.98 10.93 9.66 8.85 8.32
2013 7.64 7.44 7.48 8.27 9.05 9.72 10.96 10.76 10.65 10.10 8.69 7.68
2014 7.63 7.25 7.90 8.80 9.72 10.30 10.79 11.36 11.20 10.72 10.14 9.03
2015 8.75 9.00 8.96 9.40 9.88 11.17 11.97 12.23 11.30 10.55 9.61 9.01
2016 8.45 8.77 9.05 9.71 10.21 11.16 11.90 12.52 11.27 10.40 10.42 8.63
2017 6.96 7.03 7.94 9.08 10.24 11.21 11.70 11.87 11.29 10.15 9.10 8.45
2018 8.06 7.71 8.00 8.81 10.31 10.63 11.40 11.50 11.11 10.27 9.54 8.72
2019 8.45 —- 8.96 10.05 10.87 10.98 11.26 10.85 ——- —– —– ——
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Decade Comparisons:Sea Surface Temperature at Race Rocks-
Link to Race Rocks Mean Monthly Sea Temperature 1921-present,
| Monthly temperature averages in degrees Celsius for Race Rocks | ||||||||||||
| 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | Average | Month | |
| Jan | 6.4 | 7.1 | 7.1 | 6.6 | 7.8 | 7.6 | 6.9 | 7.1 | 6.5 | 7.0 | Jan | |
| Feb | 7.1 | 6.1 | 6.4 | 7.3 | 6.9 | 8 | 7.4 | 7.3 | 6.3 | 6.6 | 6.9 | Feb |
| Mar | 7.3 | 6.6 | 6.7 | 7.7 | 7.3 | 8.6 | 7.8 | 7.8 | 7.1 | 7.1 | 7.4 | Mar |
| Apr | 7.7 | 7.5 | 7.6 | 7.9 | 8 | 9.2 | 8 | 8.6 | 7.8 | 8.2 | 8.1 | Apr |
| May | 8.5 | 8.3 | 8.6 | 9 | 9.2 | 10.1 | 8.8 | 9.7 | 9 | 9.3 | 9.1 | May |
| June | 9.5 | 9.5 | 9.3 | 9.8 | 10.1 | 10.7 | 9.8 | 10.2 | 9.8 | 10 | 9.9 | June |
| Jul | 10.3 | 10.5 | 10.3 | 10.5 | 11.1 | 11.1 | 10.5 | 10.8 | 10.8 | 10.6 | 10.7 | Jul |
| Aug | 10.5 | 10.3 | 10.5 | 10.3 | 10.8 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | Aug |
| Sept | 10.3 | 10.2 | 10.6 | 10.2 | 10.2 | 10.5 | 10.3 | 10.3 | 10.7 | 10.6 | 10.4 | Sept |
| Oct | 9.8 | 9.3 | 9.6 | 9.2 | 9.2 | 9.8 | 9.7 | 9.2 | 9.8 | 9.4 | 9.5 | Oct |
| Nov | 9.1 | 8.4 | 8.7 | 8.8 | 8.3 | 9.1 | 8.6 | 8.6 | 8.8 | 8.6 | 8.7 | Nov |
| Dec | 8.2 | 7.1 | 7.9 | 7.3 | 8.2 | 8.5 | 7.6 | 7.9 | 7.8 | 8 | 7.9 | Dec |
| 8.8 | Decade average |
|||||||||||
| Average | ||||||||||||
| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | |||
| Jan | 8.2 | 8.2 | 7.7 | 8.7 | 8 | 7.5 | 7.9 | 8.1 | 8.8 | 7.8 | 8.1 | Jan |
| Feb | 8.6 | 7.8 | 7.9 | 9.2 | 7.8 | 7.7 | 7.7 | 7.9 | 8.5 | 7.9 | 8.1 | Feb |
| Mar | 8.8 | 8.4 | 8.1 | 9.7 | 8.1 | 8.1 | 8.1 | 7.7 | 8.7 | 8.3 | 8.4 | Feb |
| Apr | 9.2 | 9.2 | 9 | 9.9 | 8.9 | 9.1 | 8.7 | 8.7 | 9.2 | 9.1 | 9.1 | Apr |
| May | 10.2 | 10 | 10.3 | 10.4 | 9.5 | 10 | 9.7 | 9.4 | 9.9 | 10.4 | 10.0 | May |
| June | 11.2 | 10.4 | 10.9 | 11.4 | 10.4 | 11.1 | 10.6 | 10.5 | 10.9 | 11 | 10.8 | June |
| Jul | 11.8 | 11.5 | 11.7 | 11.7 | 11.1 | 11.3 | 11.3 | 11.2 | 11.3 | 11.8 | 11.5 | Jul |
| Aug | 11.5 | 11.5 | 12.2 | 12.3 | 11.5 | 11.7 | 11.4 | 11.7 | 11.4 | 11.9 | 11.7 | Aug |
| Sept | 11.3 | 10.5 | 11.6 | 12.1 | 11.9 | 11.4 | 11.4 | 11.3 | 11.4 | 11.2 | 11.4 | Sept |
| Oct | 10.2 | 9.9 | 11.3 | 10.7 | 10.1 | 10.3 | 10.2 | 10 | 10.9 | 10.6 | 10.4 | Oct |
| Nov | 9.4 | 8.7 | 9.9 | 9.8 | 9 | 9 | 9.2 | 9 | 9 | 9.4 | 9.2 | Nov |
| Dec | 8.9 | 7.6 | 9.3 | 9 | 8.5 | 8 | 8.3 | 8.8 | 8.5 | 8.6 | 8.6 | Dec |
| 9.8 | Decade Average |
|||||||||||
| This analysis has been done by Garry Fletcher using the monthly averages of the daily temperatures. See this file for the complete set of monthly data1921 to present |
See also https://www.env.gov.bc.ca/soe/indicators/climate-change/sea-surface-temperature.html
Archive of Seawater Temperature Data 1921 to present
Note, The blanks for the years 1940-41 are due to the Second World War. Apparently during that time, data was not collected by a lightkeeper.Original data was sent by the Lightkeepers and now by the Marine Protected Area Guardian of Race Rocks to the Institute of Ocean Sciences where it is compiled and displayed at
http://www.pac.dfo-mpo.gc.ca/science/oceans/data-donnees/lighthouses-phares/index-eng.htm
Decade analysis by G. Fletcher.. NOTE probable evidence of climate change
Race Rocks Light Station: 48.2996 123.5318
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 1921 | — | 7.13 | 7.39 | 7.75 | 8.53 | 9.57 | 10.31 | 10.53 | 10.35 | 9.88 | 9.21 | 8.25 | |
| 1922 | 6.4 | 6.1 | 6.6 | 7.5 | 8.3 | 9.5 | 10.5 | 10.3 | 10.2 | 9.3 | 8.4 | 7.1 | |
| 1923 | 7.1 | 6.4 | 6.7 | 7.6 | 8.6 | 9.3 | 10.3 | 10.5 | 10.6 | 9.6 | 8.7 | 7.9 | |
| 1924 | 7.1 | 7.3 | 7.7 | 7.9 | 9 | 9.8 | 10.5 | 10.3 | 10.2 | 9.2 | 8.8 | 7.3 | |
| 1925 | 6.6 | 6.9 | 7.3 | 8 | 9.2 | 10.1 | 11.1 | 10.8 | 10.2 | 9.2 | 8.3 | 8.2 | |
| 1926 | 7.8 | 8 | 8.6 | 9.2 | 10.1 | 10.7 | 11.1 | 10.9 | 10.5 | 9.8 | 9.1 | 8.5 | |
| 1927 | 7.6 | 7.4 | 7.8 | 8 | 8.8 | 9.8 | 10.5 | 10.9 | 10.3 | 9.7 | 8.6 | 7.6 | |
| 1928 | 6.9 | 7.3 | 7.8 | 8.6 | 9.7 | 10.2 | 10.8 | 10.9 | 10.3 | 9.2 | 8.6 | 7.9 | |
| 1929 | 7.1 | 6.3 | 7.1 | 7.8 | 9 | 9.8 | 10.8 | 10.8 | 10.7 | 9.8 | 8.8 | 7.8 | |
| 1930 | 6.5 | 6.6 | 7.1 | 8.2 | 9.3 | 10 | 10.6 | 10.8 | 10.6 | 9.4 | 8.6 | 8 | |
| 1931 | 7.8 | 7.8 | 8.2 | 8.8 | 9.9 | 10.6 | 11.5 | 11.1 | 10.7 | 9.6 | 8.6 | 7.7 | |
| 1932 | 7.1 | 6.8 | 7.3 | 8.2 | 9.3 | 10.4 | 10.8 | 10.9 | 10.7 | 9.6 | 8.9 | 7.7 | |
| 1933 | 7.1 | 6.7 | 7.1 | 8 | 9.1 | 10.2 | 10.5 | 11.5 | 10.1 | 9.6 | 8.6 | 7.7 | |
| 1934 | 7.8 | 7.9 | 8.3 | 9.2 | 10 | 10.8 | 10.9 | 11.6 | 10.7 | 9.7 | 9.2 | 8.4 | |
| 1935 | 7.2 | 7.2 | 7.5 | 7.8 | 9.2 | 10.1 | 10.5 | 10.5 | 10.7 | 9.7 | 8.2 | 8.1 | |
| 1936 | 7.9 | 6.7 | 7 | 7.8 | 9.3 | 10.4 | 11.3 | 11.3 | 10.5 | 10.1 | 8.6 | 7.9 | |
| 1937 | 6.6 | 6.4 | 7.7 | 8.7 | 9.9 | 10.9 | 11.7 | 11.5 | 10.9 | 9.9 | 8.5 | 8.1 | |
| 1938 | 7.4 | 7.2 | 8.1 | 9.4 | 10.6 | 12.3 | 12.7 | 11.9 | 11 | 9.9 | 8.6 | 7.5 | |
| 1939 | 7.4 | 6.6 | 7.1 | 8.6 | 10.3 | 11.4 | 12.2 | 11.1 | 11.4 | 9.7 | –< | 8.5 | |
| 1940 | 7.98 | 8.28 | 9.06 | 10.09 | 11.49 | 11.69 | — | — | — | — | — | — | |
| 1941 | — | — | — | — | 10.87 | 10.54 | 11.29 | 11-05 | 10.66 | 9.97 | 9.07 | 8.60 | |
| 1942 | 7.9 | 7.9 | 7.8 | 8.5 | 9.6 | 9.8 | 10.5 | 11 | 10.3 | 9.5 | 8.4 | 7.9 | |
| 1943 | 6.8 | 6.7 | 7.1 | 8.2 | 8.8 | 10 | 10.3 | 10.6 | 10.3 | 9.6 | 9 | 8.1 | |
| 1944 | 7.7 | 7.5 | 7.3 | 8 | 9.2 | 10.5 | 11 | 10.9 | 10.5 | 9.6 | 9.2 | 8.1 | |
| 1945 | 7.8 | 7.7 | 7.6 | 8 | 8.8 | 9.8 | 10.1 | 10.5 | 10 | 9.5 | 8.1 | 8.1 | |
| 1946 | 7.7 | 7.3 | 7.7 | 8.1 | 9.4 | 10.2 | 10.7 | 10.8 | 10.3 | 9.4 | 8.1 | 7.7 | |
| 1947 | 7.1 | 7 | 7.7 | 8.4 | 9.5 | 10.4 | 10.6 | 10.9 | 10.5 | 9.9 | 9.1 | 7.9 | |
| 1948 | 7.5 | 6.9 | 7.2 | 7.9 | 9 | 10.2 | 10.8 | 10.7 | 10.4 | 9.5 | 8.2 | 7 | |
| 1949 | 6.1 | 6.1 | 6.9 | 8.3 | 9.4 | 10.1 | 10.3 | 10.2 | 10.5 | 9.5 | 8.7 | 7.8 | |
| 1950 | 6.2 | 5.8 | 6.6 | 7.7 | 8.7 | 9.4 | 10.1 | 10.4 | 10.3 | 9.3 | 8.5 | 8 | |
| 1951 | 7.5 | 6.9 | 6.7 | 8.1 | 9.2 | 10.2 | 10.4 | 11.1 | 10.9 | 9.5 | 8.5 | 7.7 | |
| 1952 | 6.9 | 7.1 | 7.6 | 8.2 | 9 | 9.6 | 10.4 | 10.5 | 10.2 | 9.8 | 8.6 | 7.9 | |
| 1953 | 7.8 | 7.9 | 7.6 | 8.1 | 9.3 | 9.8 | 10.6 | 11 | 10.6 | 9.9 | 9.3 | 8.5 | |
| 1954 | 7.1 | 7.3 | 7.5 | 7.9 | 8.7 | 9.3 | 9.9 | 10 | 10 | 9.4 | 9.1 | 8.4 | |
| 1955 | 7.5 | 7.1 | 6.7 | 7.5 | 8.4 | 9.3 | 9.8 | 10.2 | 10 | 8.9 | 7.5 | 6.6 | |
| 1956 | 6.7 | 6.4 | 6.3 | 7.6 | 8.7 | 9.6 | 10.2 | 10.4 | 10.1 | 9.2 | 8.1 | 7.1 | |
| 1957 | 6.3 | 6.2 | 7.2 | 8.1 | 9.3 | 10 | 10.3 | 10.5 | 10.5 | 9.8 | 8.8 | 8.3 | |
| 1958 | 8 | 8.3 | 8.6 | 9.3 | 10.3 | 10.7 | 11.5 | 11.5 | 11 | 9.9 | 8.7 | 8.1 | |
| 1959 | 7.6 | 7.4 | 7.9 | 9.1 | 9.7 | 10.4 | 11.3 | 11 | 10.4 | 9.7 | 8.3 | 7.8 | |
| 1960 | 7.1 | 7.5 | 7.5 | 8.6 | 9.6 | 10.3 | 11.4 | 10.8 | 10.1 | 9.5 | 8.6 | 7.9 | |
| 1961 | 7.9 | 8.2 | 8.4 | 8.8 | 9.4 | 10.3 | 10.9 | 11.3 | 10.6 | 9.4 | 8.2 | 7.5 | |
| 1962 | 7.2 | 7.3 | 7.3 | 8.4 | 9.3 | 10 | 10.4 | 10.5 | 10.5 | 10 | 9.3 | 8.7 | |
| 1963 | 7.5 | 7.5 | 7.8 | 8.5 | 9.6 | 10.2 | 10.5 | 10.8 | 10.6 | 10.3 | 9.9 | 8.7 | |
| 1964 | 8.2 | 7.9 | 7.7 | 8.2 | 8.8 | 9.6 | 10.3 | 10.5 | 10 | 9.4 | 8.3 | 7.4 | |
| 1965 | 6.9 | 7.1 | 7.2 | 8 | 8.8 | 9.8 | 10 | 10.2 | 10.3 | 9.7 | 9.2 | 8.5 | |
| 1966 | 7.7 | 7.6 | 7.7 | 8.5 | 9 | 9.1 | 99.9 | 10.7 | 10.1 | 9.5 | 8.7 | 8.6 | |
| 1967 | 7.9 | 7.7 | 7.6 | 8.1 | 8.9 | 9.6 | 10.3 | 10.5 | 10.5 | 9.7 | 9.1 | 8 | |
| 1968 | 7.3 | 7.3 | 8 | 8.3 | 8.7 | 9.5 | 10.2 | 10.2 | 10.4 | 9.3 | 8.8 | 7.8 | |
| 1969 | 6.5 | 6.3 | 7.2 | 8.1 | 9.1 | 10.2 | 10.4 | 10.5 | 9.8 | 9.2 | 8.7 | 8.1 | |
| 1970 | 7.5 | 7.7 | 7.9 | 8 | 8.7 | 9.6 | 10.2 | 10.2 | 10 | 9 | 8.3 | 7.5 | |
| 1971 | 7 | 6.9 | 6.7 | 7.5 | 8.5 | 9.1 | 10 | 10.6 | 10.4 | 9.3 | 8.3 | 7.3 | |
| 1972 | 6.4 | 6.2 | 6.9 | 7.6 | 8.8 | 9.5 | 10.5 | 10.6 | 10.2 | 9.1 | 8.4 | 7.3 | |
| 1973 | 7 | 7.2 | 7.9 | 8.4 | 8.6 | 9.2 | 10.1 | 10.3 | 10 | 9.2 | 8.2 | 8 | |
| 1974 | 7.2 | 7.2 | 7.3 | 8.1 | 8.5 | 9.7 | 10 | 10.9 | 10.6 | 9.7 | 8.6 | 8.2 | |
| 1975 | 7.3 | 6.8 | 7.2 | 7.7 | 8.7 | 9.4 | 10.2 | 10.4 | 10.4 | 9.6 | 9.2 | 7.8 | |
| 1976 | 7.2 | 7 | 7 | 7.8 | 8.7 | 9.3 | 10.1 | 10.1 | 10 | 9.4 | 8.6 | 8.1 | |
| 1977 | 7.6 | 7.9 | 8 | 8.3 | 8.8 | 9.7 | 9.9 | 10.8 | 10.3 | 9.2 | 8.6 | 7.9 | |
| 1978 | 7.6 | 7.9 | 8.3 | 8.9 | 9.4 | 10.3 | 10.4 | 10.9 | 10.5 | 9.8 | 8.2 | 7.3 | |
| 1979 | 6.5 | 6.9 | 7.5 | 8.3 | 9.5 | 10 | 10.8 | 10.7 | 10.5 | 9.8 | 9 | 8.6 | |
| 1980 | 7.7 | 7.6 | 7.9 | 8.6 | 9.5 | 9.5 | 10.6 | 10.9 | 10.5 | 9.9 | 9.2 | 8.6 | |
| 1981 | 8.3 | 8.3 | 8.8 | 9.2 | 9.4 | 9.9 | 10.3 | 10.5 | 10.2 | 9.7 | 9.3 | 8.5 | |
| 1982 | 7.2 | 7.5 | 8 | 8.8 | 9.9 | 10.7 | 11.4 | 11.8 | 11.4 | 10.3 | 8.8 | 8.3 | |
| 1983 | 8.6 | 8.6 | 9.3 | 10 | 10.6 | 11.3 | 11.7 | 12.4 | 11.4 | 10.3 | 9.5 | 7.7 | |
| 1984 | 7.5 | 7.8 | 8.4 | 9 | 9.7 | 10.3 | 11.4 | 11.6 | 10.6 | 9.7 | 8.5 | 6.9 | |
| 1985 | 6.8 | 6.8 | 7.2 | 8.2 | 9.6 | 10.6 | 11.5 | 11.6 | 10.8 | 9.6 | 6.8 | 6.4 | |
| 1986 | 7 | 6.6 | 8 | 8.4 | 9.4 | 11 | 10.9 | 11.8 | 10.8 | 9.8 | 8.4 | 7.8 | |
| 1987 | 7.6 | 7.9 | 8.3 | 8.9 | 9.8 | 10.6 | 11.1 | 11.5 | 11.1 | 10 | 9 | 8.2 | |
| 1988 | 7.4 | 7.5 | 7.5 | 8.6 | 9.6 | 10.4 | 11 | 11.4 | 10.6 | 9.6 | 8.7 | 7.9 | |
| 1989 | 7 | 5.8 | 6.8 | 8.2 | 9.5 | 10.7 | 11.3 | 11.2 | 11 | 9.9 | 8.9 | 8.2 | |
| 1990 | 8.1 | 7.7 | 8.2 | 9 | 9.9 | 10.8 | 11.8 | 12.1 | 12.1 | 10.7 | 9.9 | 8.2 | |
| 1991 | 7.1 | 7.7 | 7.9 | 8.4 | 9.7 | 9.7 | 10.8 | 11 | 11.2 | 10.1 | 8.9 | 8.3 | |
| 1992 | 7.9 | 8.1 | 9.5 | 9.5 | 10.2 | 10.7 | 11.1 | 11.4 | 11 | 10 | 9.1 | 7.8 | |
| 1993 | 6.7 | 6.7 | 7.6 | 8.6 | 9.7 | 10.8 | 11 | 11.2 | 11 | 10.1 | 8.5 | 7.9 | |
| 1994 | 8 | 7.4 | 8.6 | 9.3 | 10.1 | 10.6 | 11.6 | 11.5 | 11.3 | 10.7 | 9.3 | 8.4 | |
| 1995 | 8.2 | 8.6 | 8.8 | 9.2 | 10.2 | 11.2 | 11.8 | 11.5 | 11.3 | 10.2 | 9.4 | 8.9 | |
| 1996 | 8.2 | 7.8 | 8.4 | 9.2 | 10 | 10.4 | 11.5 | 11.5 | 10.5 | 9.9 | 8.7 | 7.6 | |
| 1997 | 7.7 | 7.9 | 8.1 | 9 | 10.3 | 10.9 | 11.7 | 12.2 | 11.6 | 11.3 | 9.9 | 9.3 | |
| 1998 | 8.7 | 9.2 | 9.7 | 9.9 | 10.4 | 11.4 | 11.7 | 12.3 | 12.1 | 10.7 | 9.8 | 9 | |
| 1999 | 8 | 7.8 | 8.1 | 8.9 | 9.5 | 10.4 | 11.1 | 11.5 | 11.9 | 10.1 | 9 | 8.5 | |
| 2000 | 7.5 | 7.7 | 8.1 | 9.1 | 10 | 11.1 | 11.3 | 11.7 | 11.4 | 10.3 | 9 | 8 | |
| 2001 | 7.9 | 7.7 | 8.1 | 8.7 | 9.7 | 10.6 | 11.3 | 11.4 | 11.4 | 10.2 | 9.2 | 8.3 | |
| 2002 | 8.1 | 7.9 | 7.7 | 8.7 | 9.4 | 10.5 | 11,2 | 11.7 | 11.3 | 10.0 | 9.0 | 8.8 | |
| 2003 | 8.8 | 8.5 | 8.7 | 9.2 | 9.9 | 10.9 | 11.3 | 11.4 | 11.4 | 10.9 | 9.0 | 8.5 | |
| 2004 | 7.8 | 7.9 | 8.3 | 9.1 | 10.4 | 11.0 | 11.8 | 11.9 | 11.2 | 10.6 | 9.4 | 8.6 | |
| 2005 | 7.7 | 8.0 | 8.8 | 9.4 | 10.7 | 11.2 | 11.6 | 12.1 | 11.5 | 10.4 | 9.5 | 8.3 | |
| 2006 | 8.61 | 8.49 | 8.41 | 8.75 | 10.08 | 10.86 | 11.66 | 12.09 | 11.49 | 10.55 | 9.29 | 8.5 | |
| 2007 | 7.8 | 7.9 | 7.9 | 9.0 | 10.0 | 10.2 | 11.2 | 11.6 | 11.0 | 10.0 | 9.0 | 8.0 | |
| 2008 | 7.46 | 7.33 | 7.68 | 8.06 | 9.36 | 9.77 | 10.84 | 11.30 | 11.16 | 10.14 | 9.39 | 7.87 | |
| 2009 | 7.29 | 7.20 | 7.5 | 8.4 | 9.54 | 10.4 | 11.4 | 11.74 | 11.8 | 10.5 | 9.0 | 7.0 | |
| 2010 | 8.11 | 8.68 | 9.12 | 8.96 | 9.54 | 10.36 | 11.16 | 11.93 | 11.08 | 10.37 | 8.98 | 8.5 | |
| 2011 | 7.77 | 7.49 | 7.77 | 8.53 | 9.32 | 10.35 | 10.76 | 11.38 | 11.17 | 10.14< | 8.66< | 8.01 | |
| 2012 | 7.29 | 7.35 | 7.63 | 8.73 | 9.82 | 9.76 | 10.37 | 10.98 | 10.92 | 9.66< | 8.85 | 8.32 | |
| 2013 | 7.64 | 7.44 | 7.48 | 8.27 | 9.05 | 9.72 | 10.96 | 10.76 | 10.65 | 10,10 | 8.69 | 7.68 | |
| 2014 | 7.63 | 7.25 | 7.90 | 8.80 | 9.72 | 10.30 | 10.79 | 11.36 | 11.20 | 10.72 | 10.14 | 9.03 | |
| 2015 | 8.75 | 9.00 | 8.96 | 9.40 | 9.88 | 11.17 | 11.97 | 12.23 | 11.30 | 10.55 | 9.61 | 9.01 | |
| 2016 | 8.45 | 8.77 | 9.05 | 9.71 | 10.21 | 11.16 | 11.90 | 12.52 | 11.27 | 10.40 | 10.42 | 8.63 | |
| 2018 | 8.06 | 7.71 | 8.00 | 8.81 | 10.31 | 10.63 | 11.40 | 11.50 | 11.11 | `0.27 | 9,54 | 8.72 | |
| 2019 | 8.45 | — | — | 8.96 | 10.05 | 10.87 | 10.98 | 11.26 | 10.85 | — | — | — | |
| 2020 | — | — | — | — | — | — | — | — | — | — | — | — | |
| 2021 | — | — | — | — | — | — | — | — | — | — | — | — | |
| 2022 | — | — | — | — | — | — | — | — | — | — | — | — | |
| Year/span> | Jan | Feb | Mar | Apr/span> | May | Jun/span> | Jul/span> | Aug/span> | Sep | Oct | Nov | Dec |
December Sea Water
| Temp | Temp | Sal | ||
| Day | Time | ºC | ºC | ppt |
| 1 | ||||
| 2 | 13:00 | 10.0 | 31.2 | |
| 3 | 14:00 | 10.0 | 31.2 | |
| 4 | 8:00 | 9.8 | 31.5 | |
| 5 | 8:15 | 9.7 | 31.2 | |
| 6 | 8:00 | 9.0 | 31.3 | |
| 7 | 9:00 | 8.7 | 31.5 | |
| 8 | 9:30 | 8.9 | 31.4 | |
| 9 | 9:30 | 8.7 | 30.9 | |
| 10 | 10:30 | 8.8 | 31.2 | |
| 11 | 9:20 | 8.9 | 31.9 | |
| 12 | 11:30 | 8.5 | 31.5 | |
| 13 | 11:45 | 8.5 | 31.7 | |
| 14 | 12:00 | 8.4 | 31.9 | |
| 15 | 13:00 | 8.6 | 31.9 | |
| 16 | ||||
| 17 | 16:30 | 8.3 | 31.9 | |
| 18 | 9:00 | 8.4 | 32.1 | |
| 19 | 8:30 | 8.6 | 8.5 | 32.4 |
| 20 | 16:15 | 8.6 | 8.6 | 31.8 |
| 21 | 9:30 | 8.5 | 8.4 | 32.1 |
| 22 | 10:00 | 8.5 | 8.4 | 32 |
| 23 | 11:00 | 8.4 | 8.3 | 31.6 |
| 24 | 10:30 | 8.0 | 31.4 | |
| 25 | 10:15 | 8.1 | 31.4 | |
| 26 | 12:30 | 8.1 | 31.3 | |
| 27 | 10:30 | 8.1 | 31.5 | |
| 28 | 11:00 | 8.2 | 31.8 | |
| 29 | 12:00 | 8.2 | 31.9 | |
| 30 | 11:05 | 8.2 | 31.8 | |
| 31 | 12:30 | 8.1 | 31.8 |
November seawater data
| YSI | YSI | ||
| Temp | Sal | ||
| Day | Time | ºC | ppt |
| 1 | 13:50 | 31.7 | 10.4 |
| 2 | 13:50 | 31.8 | 10.3 |
| 3 | 13:50 | 31.7 | 10.4 |
| 4 | 13:50 | 31.6 | 10.3 |
| 5 | 12:08 | 31.3 | 10.6 |
| 6 | 10:10 | 31.6 | 10.6 |
| 7 | 10:03 | 31.3 | 11 |
| 8 | 10:00 | 31.5 | 10.7 |
| 9 | 10:03 | 31.4 | 10.7 |
| 10 | 10:25 | 31.3 | 10.9 |
| 11 | 10:45 | 31.5 | 10.7 |
| 12 | 11:15 | 31.4 | 10.7 |
| 13 | 11:48 | 31.5 | 10.5 |
| 14 | 12:06 | 31.5 | 10.7 |
| 15 | 16:00 | 31.4 | 10.3 |
| 16 | 15:00 | 31.2 | 10.2 |
| 17 | 13:00 | 31.2 | 10.2 |
| 18 | x | x | x |
| 19 | 14:00 | 31.2 | 10.2 |
| 20 | 13:00 | 31.4 | 10.2 |
| 21 | x | x | x |
| 22 | 12:00 | 31.6 | 10.2 |
| 23 | 11:00 | 31.4 | 10.3 |
| 24 | 12:00 | 31.3 | 10.4 |
| 25 | 13:00 | 31.6 | 10.2 |
| 26 | 12:00 | 31.4 | 10.3 |
| 27 | 12:00 | 31.5 | 10.1 |
| 28 | 13:00 | 31.4 | 10.1 |
| 29 | 14:00 | 31.5 | 10.3 |
| 30 | 12:00 | 31.4 | 10.2 |
