Average monthly water temperature in San Francisco, the United States of America

On this page you find the mean water temperature over the year in San Francisco (California), the United States of America. Discover when the water is at its warmest and coolest, perfect for planning your visit.

In San Francisco, water temperatures remain cool throughout the year. The warmest month is June, with an average water temperature of 14°C (57°F).

The coldest water temperature month is January, with an average temperature of 12°C (54°F). This temperature is not very suitable for swimming.

San Francisco (CA) 3-Day Forecast

10-Day Forecast

More climate data for San Francisco

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full San Francisco climate overview or explore weather in the United States of America.

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