Channel Islands of California Sea Temperature in August

Looking to find out what the average sea water temperature in Channel Islands of California is for August? Find out what the lowest, highest, and average water temperatures are for Channel Islands of California over the past 10 years.

Average water temperature in Channel Islands of California for August

The average, high, and low temperatures below should help you if you can swim in the water in Channel Islands of California in August.

19.78° C

(67.61° F)

highest: 22.14° C (71.85° F)
lowest: 16.91° C (62.44° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Water temperature range by day in August in Channel Islands of California

The chart below shows the range of low and high temperatures by day for the month of August in Channel Islands of California.

Water temperatures for August in Channel Islands of California in recent years

Day	2024	2023	2022	2021
1	0° C	20.05° C	20.42° C	19.55° C
2	0° C	19.61° C	20.5° C	19.62° C
3	0° C	19.12° C	20.6° C	19.59° C
4	0° C	18.82° C	20.75° C	19.54° C
5	0° C	18.63° C	20.7° C	19.46° C
6	0° C	18.27° C	20.37° C	19.29° C
7	0° C	18.59° C	20.09° C	19.13° C
8	0° C	19.18° C	20.2° C	19.44° C
9	0° C	18.96° C	20.37° C	19.51° C
10	0° C	18.88° C	20.5° C	19.45° C
11	0° C	18.93° C	20.47° C	19.8° C
12	0° C	18.84° C	20.13° C	20.53° C
13	0° C	18.6° C	19.94° C	20.77° C
14	0° C	18.95° C	19.9° C	20.66° C
15	0° C	19.17° C	19.9° C	20.72° C
16	0° C	19.24° C	19.86° C	20.8° C
17	0° C	19.25° C	20.15° C	21.05° C
18	0° C	19.39° C	20.09° C	21.17° C
19	0° C	19.55° C	20.06° C	20.91° C
20	0° C	19.55° C	19.83° C	20.95° C
21	0° C	19.47° C	20.15° C	20.9° C
22	0° C	19.52° C	20.05° C	20.8° C
23	0° C	19.51° C	19.9° C	20.76° C
24	0° C	19.49° C	20.37° C	20.55° C
25	0° C	19.83° C	20.56° C	20.61° C
26	0° C	19.43° C	20.8° C	20.73° C
27	0° C	19.61° C	20.69° C	20.66° C
28	0° C	19.97° C	20.47° C	20.6° C
29	0° C	20.38° C	20.86° C	20.67° C
30	0° C	20.72° C	21.02° C	20.85° C
31	0° C	20.65° C	21.16° C	20.76° C

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Channel Islands of California comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

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