Category Archives: Seawater Data

Race Rocks Mean Monthly Sea Temperature 1921-present,

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Seawater Temperature: Race Rocks
Decade Comparisons:Sea Surface Temperature at Race Rocks-
 

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1921 7.1 7.3 7.7 8.5 9.5 10.3 10.5 10.3 9.8 9.1 8.2
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 7.9 8.2 9 10 11.4 11.6
1941 10 10.5 11.2 11 10.6 9.9 9 8.5
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 7.8 — — — — — — — — — — —
2012 — — — — — — — — — — — —
2013 — — — — — — — — — — — —
2014 — — — — — — — — — — — —
2016 — — — — — — — — — — — —
2017 — — — — — — — — — — — —
2018 — — — — — — — — — — — —
2019 — — — — — — — — — — — —
2020 — — — — — — — — — — — —
2021 — — — — — — — — — — — —
2022 — — — — — — — — — — — —
2023 — — — — — — — — — — — —

 

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 Average GraphDecade analysis by G. Fletcher.. NOTE probable evidence of climate change

 

Seawater Temperature and Salinity, March 2010

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March 2010
Race Rocks Lightstation    Time Zone P.S.T
Observer Lester B. Pearson College of the Pacific
Daily Seawater Temperature and Density Record Shore Station 

MONTH: March YEAR: 2010
Date Time Sea
Temp.
°C		 Jar
Temp.
°C		 Hydro- meter No. Observer Density (1.02–) Reduced *Corrected *Salinity
1 11:30 9.0 8.7 10,802 1.0238 1.0228 1.0
2 13:30 9.0 8.8 10,802 1.0239 1.0229 1.0
3 16:30 9.0 8.8 10,802 1.0238 1.0228 1.0
4 19:40 9.0 8.7 10,802 1.0239 1.0229 1.0
5 4:30 8.5 8.5 10,802 1.0240 1.0230 1.0
6 4:51 8.5 8.6 10,802 1.0237 1.0227 1.0
7 5:10 9.0 8.7 10,802 1.0237 1.0227 1.0
8 5:10 9.0 8.8 10,802 1.0239 1.0229 1.0
9 5:40 9.0 8.6 10,802 1.0237 1.0227 1.0
10 6:30 8.5 8.6 10,802 1.0238 1.0228 1.0
11 7:32 9.0 8.7 10,802 1.0238 1.0228 1.0
12 11:00 9.0 8.8 10,802 1.0238 1.0228 1.0
13 12:00 9.5 9.1 10,802 1.0239 1.0229 1.0
14 13:05 9.0 8.5 10,802 1.0238 1.0228 1.0
15 14:45 9.0 9.0 10,802 1.0235 1.0225 1.0
16 17:20 9.5 9.3 10,802 1.0242 1.0233 1.0
17 16:25 9.5 9.0 10,802 1.0240 1.0230 1.0
18 17:03 9.5 8.9 10,802 1.0242 1.0232 1.0
19 21:22 9.0 8.7 10,802 1.0239 1.0229 1.0
20 16:25 9.9 9.4 10,802 1.0239 1.0232 1.0
21 4:40 9.0 8.8 10,802 1.0238 1.0231 1.0
22 4:34 9.0 9.0 10,802 1.0239 1.0229 1.0
23 5:15 9.0 9.2 10,802 1.0241 1.0231 1.0
24 6:15 9.0 9.0 10,802 1.0249 1.0229 1.0
25 7:30 9.5 9.3 10,802 1.0240 1.0231 1.0
26 9:40 9.5 9.2 10,802 1.0240 1.0230 1.0
27 13:10 9.5 9.2 10,802 1.0239 1.0229 1.0
28 13:15 9.3 9.3 10,802 1.0238 1.0229 1.0
29 12:55 9.2 9.2 10,802 1.0239 1.0229
30 15:41 9.3 9.3 10,802 1.0239 1.0230
31 17:03 9.0 9.0 10,802 1.0240 1.0230
Mean* * 9.1 8.9 1.0239 1.0229 1.0 * *
* These calculations will be done later at D.F.O. office.Recorded by Race Rocks Marine Protected Area Guardian Ryan Murphy and students of Pearson College
Lester B. Pearson College of the Pacific

Seawater Temperature and Salinity February, 2010

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 Submission on daily seawater temperature and salinity as it is provided to IOS from the daily sampling by the Ecoguardians at Race Rocks.

See the PDF file: Dec2010 February

6 Daily Seawater Temperature and Density Record Shore Station
8
Time Zone P.S.T
9
10 Observer: Lester B. Pearson College of the Pacific MONTH: February YEAR: 2010
11
12 Date Time Sea Jar Hydro- meter No. Observer Density (1.02–) Reduced *Corrected *Salinity
Temp. Temp.
°C °C
13 1 14:54 8.5 8.2 10,802 1.0239 1.0228 1
14 2 16:01 8.5 8.5 10,802 1.0237 1.0227 1
15 3 17:10 8.5 8.3 10,802 1.0241 1.023 1
16 4 6:03 8.5 8.2 10,802 1.024 1.0229 1
17 5 6:00 8.5 8.2 10,802 1.0239 1.0228 1
18 6 6:28 8.5 8.4 10,802 1.0241 1.023 1
19 7 6:40 8.5 8.5 10,802 1.0238 1.0228 1
20 8 6:45 8.5 8.2 10,802 1.0239 1.0228 1
21 9 7:30 8.5 8.1 10,802 1.0236 1.0225 1
22 10 8:08 8.5 8.2 10,802 1.0238 1.0227 1
23 11 10:15 8.5 8.3 10,802 1.0238 1.0227 1
24 12 10:00 8.5 8.3 10,802 1.0237 1.0226 1
25 13 12:09 8.5 8.4 10,802 1.0238 1.0227 1
26 14 13:01 8.5 8.6 10,802 1.0238 1.0228 1
27 15 14:04 8.5 8.5 10,802 1.0237 1.0227 1
28 16 15:01 8.5 8.6 10,802 1.0238 1.0228 1
29 17 15:47 9 8.6 10,802 1.0238 1.0228 1
30 18 16:31 9 8.7 10,802 1.0239 1.0229 1
31 19 5:00 8.5 8.6 10,802 1.0237 1.0227 1
32 20 5:02 9 8.7 10,802 1.0238 1.0228 1
33 21 5:12 9.5 8.1 10,802 1.0238 1.0227 1
34 22 5:25 8.1 8 10,802 1.0239 1.0228 1
35 23 6:06 8.5 8 10,802 1.024 1.0229 1
36 24 6:15 8.6 8.2 10,802 1.0236 1.0226 1
37 25 8:00 9 8.5 10,802 1.0238 1.0227 1
38 26 9:20 9 8.6 10,802 1.0237 1.0226 1
39 27 11:30 9 8.9 10,802 1.0238 1.0227 1
40 28 13:00 10 9.4 10,802 1.0238 1.0228 1
41
44 Mean* * 8.7 8.4 1.0238 1.0228 1.0 * *
45
46 * These calculations will be done later at D.F.O. office.
Recorded by Race Rocks Marine Protected Area Guardian Ryan Murphy
Lester B. Pearson College of the Pacific

Archived Seawater Temperature and Salinity Records

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We will be including our monthly submissions  on daily seawater temperature and salinity as it is provided to IOS from the daily sampling by the Ecoguardians at Race Rocks.

Pearson College UWC

For the daily data for past months presented on this log, see:
https://www.racerocks.ca/category/seawater-data-2/

For monthly means for temperature and Salinity since 1921:

 

 

Seawater Temperature and Salinity May 2009

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May 2009

Race Rocks Lightstation Time Zone P.S.T
Observer Lester B. Pearson College of the Pacific

Daily Seawater Temperature and Density Record Shore Station 

         Month   May     2009
                 
Date Time Sea
Temp.
°C		 Jar
Temp.
°C		 Hydro-  meter   No. Observer Density (1.02–)   Reduced *Corrected *Salinity
1 23:50 9.5 9.2 10,802 1.0242 1.0232 1.0  
2 23:57 9.5 9.4 10,802 1.0241 1.0231 1.0  
3 23:40 9.5 9.2 10,802 1.0241 1.0231 1.0  
4 23:43 9.0 8.8 10,802 1.0243 1.0233 1.0  
5 12:58 9.0 9.0 10,802 1.0243 1.0233 1.0  
6 0:03 9.0 9.1 10,802 1.0242 1.0232 1.0  
7 17:20 9.0 8.9 10,802 1.0245 1.0235 1.0  
8 18:14 9.5 9.2 10,802 1.0248 1.0237 1.0  
9 19:13 9.5 9.1 10,802 1.0247 1.0236 1.0  
10 1:05 9.5 9.0 10,802 1.0247 1.0236 1.0  
11 1:03 9.5 9.1 10,802 1.0248 1.0237 1.0  
12 23:50 9.5 9.0 10,802 1.0245 1.0234 1.0  
13 23:05 9.5 8.6 10,802 1.0243 1.0233 1.0  
14 23:05 9.5 9.2 10,802 1.0246 1.0235 1.0  
15 23:10 9.5 9.3 10,802 1.0246 1.0235 1.0  
16 23:05 10.0 9.6 10,802 1.0242 1.0233 1.0  
17 23:05 9.5 9.5 10,802 1.0244 1.0235 1.0  
18 22:58 9.5 9.2 10,802 1.0245 1.0234 1.0  
19 23:03 9.5 9.4 10,802 1.0244 1.0235 1.0  
20 23:18 9.5 9.5 10,802 1.0245 1.0236 1.0  
21 23:35 9.5 9.3 10,802 1.0242 1.0232 1.0  
22 23:46 9.5 9.5 10,802 1.0243 1.0234 1.0  
23 NO HIGH TIDE           1.0  
24 0:02 10.0 9.6 10,802 1.0245 1.0236 1.0  
25 0:31 9.5 9.4 10,802 1.0246 1.0237 1.0  
26 1:20 10.0 9.5 10,802 1.0247 1.0241 1.0  
27 2:00 9.7 8.9 10,802 1.0243 1.0235 1.0  
28 22:55 9.9 9.7 10,802 1.0241 1.0234 1.0  
29 22:04 9.5 9.3 10,802 1.0245 1.0237 1.0  
30 22:02 10.0 9.5 10,802 1.0243 1.0236 1.0  
31 21:58 10.0 9.7 10,802 1.0239 1.0232 1.0  
Mean* * 9.5 9.4   1.0244 1.0235 1.0 * *
  Recorded by Race Rocks Marine Protected Area Guardians,
Adam Harding & Ryan Murphy, Lester B. Pearson College of the Pacific
* These calculations will be done later at D.F.O. office.

Seawater Temperature and Salinity April 2009

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April 2009

Race Rocks Lightstation Time Zone P.S.T
Observer Lester B. Pearson College of the PacificDaily Seawater Temperature and Density Record Shore Station 
Month   April 2009
               
Date Time Sea
Temp.
°C		 Jar
Temp.
°C		 Hydro-  meter   No. Observer Density (1.02-) Reduced *Corrected *Salinity
1 4:26 7.5 7.5 10,802 1.0246 1.0235 1.0
2 4:59 7.5 7.5 10,802 1.0244 1.0233 1.0
3 5:42 8.0 7.6 10,802 1.0245 1.0234 1.0
4 6:59 8.0 7.8 10,802 1.0243 1.0232 1.0
5 10:30 8.0 7.8 10,802 1.0241 1.0230 1.0
6 1:18 8.0 7.6 10,802 1.0242 1.0231 1.0
7 1:10 8.0 7.7 10,802 1.0242 1.0231 1.0
8 14:15 8.2 8.1 10,802 1.0240 1.0229 1.0
9 15:36 8.5 8.4 10,802 1.0243 1.0232 1.0
10 18:30 8.2 8.1 10,802 1.0243 1.0232 1.0
11 19:55 8.2 8.0 10,802 1.0244 1.0233 1.0
12 3:15 8.0 7.8 10,802 1.0244 1.0233 1.0
13 3:17 8.0 8.0 10,802 1.0242 1.0231 1.0
14 2:49 8.0 7.7 10,802 1.0243 1.0232 1.0
15 0:43 8.2 8.0 10,802 1.0243 1.0232 1.0
16 0:50 8.2 8.1 10,802 1.0244 1.0233 1.0
17 0:59 8.5 8.2 10,802 1.0243 1.0232 1.0
18 1:06 8.5 8.1 10,802 1.0244 1.0233 1.0
19 0:56 8.2 8.2 10,802 1.0242 1.0231 1.0
20 0:55 8.5 8.5 10,802 1.0243 1.0232 1.0
21 0:40 8.2 8.3 10,802 1.0244 1.0233 1.0
22 13:48 9.0 8.7 10,802 1.0243 1.0233 1.0
23 14:39 8.5 8.7 10,802 1.0245 1.0234 1.0
24 15:46 10.2 9.4 10,802 1.0242 1.0232 1.0
25 18:37 8.5 8.6 10,802 1.0242 1.0232 1.0
26 1:49 9.0 8.8 10,802 1.0243 1.0233 1.0
27 2:04 8.5 8.5 10,802 1.0244 1.0234 1.0
28 2:29 8.5 8.6 10,802 1.0243 1.0233 1.0
29 2:58 9.0 8.7 10,802 1.0244 1.0234 1.0
30 3:34 9.0 8.6 10,802 1.0242 1.0232 1.0
31       10,802     1.0
Mean* * 8.4 8.3 * 1.0243 1.0232 1.0 * *
  Recorded by Race Rocks Marine Protected Area Guardians,
Adam Harding & Ryan Murphy, Lester B. Pearson College of the Pacific
* These calculations will be done later at D.F.O. office.

Seawater Salinity and Temperature November 2008

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Daily Seawater Temperature and Density Record Shore Station

Observer Lester B. Pearson College of the Pacific,
Month NOVEMBER 2008,Time Zone P.S.T

 Date:
November:		 temp °C °tempC Jar Temp °C Hydro- meter No. Observer Reduced *Corrected *Salinity
1 11:57 9.6 9.4 10,802 1.0242 1.0233 1
2 11:17 9.6 9.5 10,802 1.0242 1.0233 1
3 10:50 9.6 9.5 10,802 1.0241 1.0232 1
4 10:41 9.7 9.5 10,802 1.024 1.0231 1
5 10:42 9.6 9.4 10,802 1.024 1.0231 1
6 10:48 9.8 9.5 10,802 1.0237 1.0228 1
7 10:44 9.8 9.4 10,802 1.0236 1.0227 1
8 19:31 9.8 9.4 10,802 1.024 1.0231 1
9 10:34 9.7 9.5 10,802 1.0242 1.0233 1
10 10:48 9.8 9.5 10,802 1.024 1.0231 1
11 11:05 9.7 9.5 10,802 1.024 1.0231 1
12 4:19 9.7 9.4 10,802 1.0241 1.0232 1
13 5:24 9.6 9.4 10,802 1.0241 1.0232 1
14 6:22 9.5 9.3 10,802 1.0239 1.023 1
15 7:18 9.2 9 10,802 1.0242 1.0232 1
16 8:13 9.4 9.2 10,802 1.0242 1.0232 1
17 8:49 9.5 9.1 10,802 1.0244 1.0234 1
18 9:21 9.2 9.1 10,802 1.0243 1.0233 1
19 9:47 9.1 8.9 10,802 1.0241 1.0231 1
20 9:58 9.2 9 10,802 1.0241 1.0231 1
21 9:44 9.1 8.9 10,802 1.0242 1.0232 1
22 9:50 9.1 8.9 10,802 1.0241 1.0231 1
23 10:07 9.2 8.9 10,802 1.0239 1.0229 1
24 3:23 8.9 8.7 10,802 1.0239 1.0229 1
25 4:18 8.8 8.7 10,802 1.0239 1.0229 1
26 5:11 8.7 8.6 10,802 1.0238 1.0228 1
27 10:23 9.1 8.9 10,802 1.024 1.023 1
28 10:41 9.2 9 10,802 1.0239 1.023 1
29 11:01 9.2 9 10,802 1.024 1.023 1
30 11:16 9.3 9.1 10,802 1.0239 1.0229 1
Mean

Recorded by Race Rocks Marine Protected Area Guardian, Mike Slater.. Lester B Pearson