Climate in San Francisco (California), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Celsius

Average min and max temperatures in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Daily percent of sunshine

The mean percent of sunhours during the day over the year

Average percent of sunshine in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Average water temperature

The mean water temperature over the year. Show in Celsius

Average water temperatures in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Millimeter

Average precipitation (rain/snow) in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average wind speed in San Francisco, United States of America   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for San Francisco (California)

FRI Aug 12
71°F | 58°F
Sunny

Sunny

SAT Aug 13
71°F | 58°F
Sunny

Sunny

SUN Aug 14
71°F | 59°F
Sunny

Sunny

The best time of year to visit San Francisco in United States of America

San Francisco has a Mediterranean climate which means warm and dry summers with mild winters. It's the perfect city in the US to visit in autumn or early spring. Most rain is seen from November until March, but with more than 150 hours of sunshine you could still consider visiting San Francisco during those months.

In winter the evening temperatures can drop, but almost never below freezing.

During the month of August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 26 degrees Celsius (79°F).

Other facts from our historical climate data:

  • Does San Francisco have a dry season?
    Yes, the months May, June, July, August and September are very dry.
  • Which is the warmest month in San Francisco?
    September has an average maximum temperature of 21°C (70°F) and is the warmest month of the year.
  • Which is the coldest month in San Francisco?
    The coldest month is January with an average maximum temperature of 14°C (58°F).
  • Which is the wettest month in San Francisco?
    December tops the wettest month list with 122mm (4.8in) of rainfall.
  • Which is the driest month in San Francisco?
    July is the driest month with 1mm (0.0in) of precipitation.
  • Which is the sunniest month in San Francisco?
    May is the sunniest month with an average of 324 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.