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.

Average monthly minimum and maximum temperature in San Francisco, the United States of America

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in San Francisco, the United States of America

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Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in San Francisco, the United States of America

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Average water temperature

The mean water temperature over the year.

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

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Monthly precipitation

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

Average monthly rainfall, snow, precipitation in San Francisco, the United States of America

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Monthly rainy days

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

Average monthly rainy days in San Francisco, the United States of America

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in San Francisco, the United States of America

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Average wind speed

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

Average monthly wind speed in San Francisco, the United States of America

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Weather Forecasts for San Francisco (CA)

Mon   Feb 26
17°C | 10°C
NW 25 km/h
0.3 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

Tue   Feb 27
16°C | 8°C
W 22 km/h
clear and no rain

clear and no rain

Wed   Feb 28
17°C | 8°C
W 25 km/h
almost clear and no rain

almost clear and no rain

The best time of year to visit San Francisco in the 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 months of June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Does San Francisco have a dry season?
    Yes, the months of May, June, July, August and September are very dry.
  • Which is the warmest month in San Francisco?
    September has an average maximum temperature of 23°C and is the warmest month of the year.
  • Which is the coldest month in San Francisco?
    The coldest month is December with an average maximum temperature of 14°C.
  • Which is the wettest month in San Francisco?
    December tops the wettest month list with 112 mm of rainfall.
  • Which is the driest month in San Francisco?
    July is the driest month with 0 mm 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 have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.