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Channel Islands of California Sea Temperature in August

California, United States

July Channel Islands of California year-round → September

Average sea temperature for Channel Islands of California, United States across August, based on 10 years of daily readings.

Average

19.81° C

High

22.14° C

Low

17.37° C

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.

August is the 2nd warmest of 12 months at Channel Islands of California. On average the water sits 2.9° than the year-round mean of 16.89° C.

Compared to July, August is 0.6° warmer than (19.25° C in July). By September the water is usually 19.96° C.

Channel Islands of California Day-by-Day Water Temperature in August

10-year low, average and high

16.5° C
18.1° C
19.8° C
21.4° C
23.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through August. Range Average

Each vertical bar above is one day of August. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Channel Islands of California.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

August Water Temperature Table for Channel Islands of California

10-year daily averages

Day Average Low High
August 1 19.79° C 18.35° C 21.2° C
August 2 19.82° C 18.39° C 20.99° C
August 3 19.83° C 18.35° C 21.35° C
August 4 19.77° C 18.32° C 21.57° C
August 5 19.64° C 18.56° C 21.31° C
August 6 19.46° C 18.29° C 21° C
August 7 19.53° C 18.41° C 21.42° C
August 8 19.56° C 18.02° C 21.83° C
August 9 19.42° C 17.91° C 21.86° C
August 10 19.45° C 18.03° C 21.96° C
August 11 19.6° C 18.27° C 21.84° C
August 12 19.65° C 18.4° C 21.75° C
August 13 19.62° C 18.07° C 21.54° C
August 14 19.64° C 17.74° C 21.19° C
August 15 19.71° C 17.52° C 21.14° C
August 16 19.77° C 17.38° C 21.19° C
August 17 19.87° C 17.37° C 21.16° C
August 18 19.93° C 17.42° C 21.29° C
August 19 20.01° C 17.83° C 21.93° C
August 20 20.07° C 18.07° C 22.14° C
August 21 20.04° C 18.25° C 21.85° C
August 22 19.95° C 18.71° C 21.62° C
August 23 19.98° C 18.81° C 21.55° C
August 24 19.91° C 18.73° C 21.26° C
August 25 19.91° C 18.51° C 21.03° C
August 26 19.94° C 18.34° C 20.89° C
August 27 19.99° C 18.43° C 21.17° C
August 28 20.04° C 18.79° C 21.46° C
August 29 20.05° C 19.04° C 21.33° C
August 30 20.16° C 18.68° C 21.26° C
August 31 20.1° C 18.86° C 21.16° C

Where August Sits in the Year

August highlighted

11.0° C
14.5° C
18.0° C
21.5° C
25.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
14.87° C
14.56° C
14.42° C
14.9° C
15.83° C
17.26° C
19.25° C
19.81° C
19.96° C
18.92° C
17.22° C
15.62° C
10-year monthly history for Channel Islands of California. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in August

Compare other United States water for the same month

Channel Islands of California Location

33.4506, -119.3791

33.45060, -119.37912 View on OpenStreetMap →

Channel Islands of California sits at 33.4506°N, 119.3791°W, on the coast of California, United States. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Channel Islands of California