San Francisco weather in January 2021

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  • 13°C maximum daytime temperature in January in San Francisco13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in January in San Francisco10
    10 days with some rainfall
  • 7°C minimum night-time temperature in January in San Francisco7
    7°C min night temperature
  • 10 hours of daylight per day in January in San Francisco10
    10 hours of daylight per day
  • No heat & humidity in January in San Francisco0
    No heat & humidity
  • 125 mm monthly rainfall in January in San Francisco125
    125 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in San Francisco2
    2 (Low) UV index
  • 11°C sea temperature in January in San Francisco11
    11°C sea temperature
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The January weather guide for San Francisco, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How warm is it in San Francisco in January?

Daytime temperatures usually reach 13°C in San Francisco in January, falling to 7°C at night.

How sunny is it in San Francisco in January?

There are normally 6 hours of bright sunshine each day in San Francisco in January - that's 60% of daylight hours.

Is the sea cold around San Francisco in January?

The average sea temperature around San Francisco in January is 11°C.

Does it rain in San Francisco in January?

There are usually 10 days with some rain in San Francisco in January and the average monthly rainfall is 125mm.

San Francisco sunrise & sunset times for January 2021

Browse the sunrise & sunset times for San Francisco in January 2021. Select a month to view San Francisco sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st January 2021 07:25 17:02
Saturday, 16th January 2021 07:23 17:16
Sunday, 31st January 2021 07:14 17:33
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where is hot in California in January for 2021/2022?

Below are average maximum temperatures at popular destinations in California in January. Select a destination to see more weather parameters.

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