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Cockrobin Island Bridge, Eel River, San Francisco Sea Temperature in October

California, United States

September Cockrobin Island Bridge, Eel River, San Francisco year-round → November

Average sea temperature for Cockrobin Island Bridge, Eel River, San Francisco, United States across October, based on 10 years of daily readings.

Average

12.18° C

High

15.94° C

Low

9.94° C

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

October is the 4th warmest of 12 months at Cockrobin Island Bridge, Eel River, San Francisco. On average the water sits 0.5° than the year-round mean of 11.64° C.

Compared to September, October is 1.2° cooler than (13.37° C in September). By November the water is usually 12.25° C.

Cockrobin Island Bridge, Eel River, San Francisco Day-by-Day Water Temperature in October

10-year low, average and high

9.0° C
11.0° C
13.0° C
15.0° C
17.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through October. Range Average

Each vertical bar above is one day of October. 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 Cockrobin Island Bridge, Eel River, San Francisco.

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.

October Water Temperature Table for Cockrobin Island Bridge, Eel River, San Francisco

10-year daily averages

Day Average Low High
October 1 12.73° C 10.96° C 15° C
October 2 12.64° C 10.93° C 14.44° C
October 3 12.61° C 10.92° C 14.31° C
October 4 12.52° C 10.88° C 13.72° C
October 5 12.49° C 10.93° C 14° C
October 6 12.53° C 11.08° C 13.99° C
October 7 12.42° C 11.1° C 13.53° C
October 8 12.25° C 10.76° C 13.29° C
October 9 12.12° C 10.78° C 13.44° C
October 10 12.15° C 10.67° C 14.09° C
October 11 12.25° C 10.7° C 15.53° C
October 12 12.25° C 10.94° C 15.73° C
October 13 12.32° C 11.03° C 15.94° C
October 14 12.35° C 10.95° C 15.75° C
October 15 12.38° C 11.02° C 15.05° C
October 16 12.33° C 11.13° C 13.9° C
October 17 12.25° C 11.23° C 13.45° C
October 18 12.25° C 11.17° C 13.61° C
October 19 12.16° C 11.1° C 13.56° C
October 20 12.13° C 11.19° C 13.48° C
October 21 12.09° C 11.33° C 13.41° C
October 22 11.97° C 10.07° C 13.54° C
October 23 11.94° C 10° C 13.35° C
October 24 11.85° C 9.94° C 13° C
October 25 11.79° C 10.27° C 12.75° C
October 26 11.67° C 10.43° C 12.98° C
October 27 11.74° C 10.62° C 13.44° C
October 28 11.81° C 10.33° C 13.62° C
October 29 11.83° C 10.34° C 13.68° C
October 30 11.85° C 10.33° C 13.86° C
October 31 11.88° C 10.43° C 13.55° C

Where October Sits in the Year

October highlighted

7.5° C
10.3° C
13.0° C
15.8° C
18.5° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
11.5° C
10.79° C
10.49° C
10.59° C
10.75° C
11.34° C
11.88° C
12.85° C
13.37° C
12.18° C
12.25° C
11.74° C
10-year monthly history for Cockrobin Island Bridge, Eel River, San Francisco. 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 October

Compare other United States water for the same month

Cockrobin Island Bridge, Eel River, San Francisco Location

40.6372, -124.2822

40.63720, -124.28220 View on OpenStreetMap →

Cockrobin Island Bridge, Eel River, San Francisco sits at 40.6372°N, 124.2822°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 Cockrobin Island Bridge, Eel River, San Francisco