Measurements:
°C
°F
San Francisco
56°F
N 12 mph
Feels like: 52°F
Precip: 65%
World Resorts USA San Francisco Weather

San Francisco Sea Water Temperature

Current Sea Water Temperature:
+58.0°F
Maximum Sea Water Temperature in April: 61.6°F
Minimum Sea Water Temperature in April: 51.2°F
Average water temperature in April: 56.5°F

Sea Water Temperature for the Last 10 Days:

April 23 58.0°F April 18 57.0°F
April 22 57.4°F April 17 55.6°F
April 21 59.4°F April 16 55.6°F
April 20 58.2°F April 15 57.0°F
April 19 57.6°F April 14 56.6°F

When is the Warmest Sea for San Francisco?

According to our data for the last three years for San Francisco the highest average sea water temperature was in September, August and October.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for San Francisco was 66.3°F. The maximum and minimum values were 64.8°F and 67.8°F respectively.

Sea Water Temperature in August

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for San Francisco was 65.2°F. The maximum and minimum values were 61.0°F and 69.4°F respectively.

Sea Water Temperature in October

Select Year: 2023 2022 2021

The average sea surface temperature in October 2023 for San Francisco was 64.5°F. The maximum and minimum values were 61.4°F and 67.4°F respectively.

Best Time to Visit San Francisco
The most sunny months:
June 19 days
September 18 days
October 18 days
The most warm months:
August 67.7 °F
September 66.9 °F
October 65.6 °F
Warmest sea temperature:
September 63.1 °F
August 62.8 °F
October 61.4 °F
The most cold months:
December 54.7 °F
January 55.2 °F
February 56.2 °F
The most rainy months:
February 4 days
March 4 days
December 4 days
The most windy months:
May 10 mph
June 9 mph
April 9 mph

San Francisco on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +54
Hawaii +74
Honolulu +74
Houston +68
Las Vegas +80
Los Angeles +60
Miami +80
New York +56
Orlando +78
San Diego +62
San Francisco +56
Sarasota +78
Tampa +78
Washington +66
24 Hours Weather Forecast
San Francisco
Local time: 07:35
23 apr, tuesday
0900 56°F
N
12 mph
1200 58°F
NE
14 mph
1500 60°F
NE
16 mph
1800 58°F
NE
16 mph
2100 54°F
NE
12 mph
24 apr, wednesday
0000 54°F
NE
10 mph
0300 54°F
N
8 mph
0600 54°F
N
7 mph