Average monthly water temperature in South San Francisco, the United States of America
On this page you find the mean water temperature over the year in South San Francisco (California), the United States of America. Dive into the water temperature trends, highlighting the best times for swimming and other activities.
Water temperatures in South San Francisco stay on the cooler side throughout the year. The warmest month, June, averages 14°C (57°F).
The coldest water temperature month is January, averaging 12°C (54°F). These cooler conditions are not the best for swimming enthusiasts.
South San Francisco Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in South San Francisco - and find the best time to visit.
South San Francisco 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full South San Francisco climate overview or explore weather in the United States of America.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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