San Francisco weather in April 2023

  • 17°C maximum daytime temperature in April in San Francisco17
    17°C max day temperature
  • 10 hours of sunshine per day
  • 6 days with some rainfall in April in San Francisco6
    6 days with some rainfall
  • 9°C minimum night-time temperature in April in San Francisco9
    9°C min night temperature
  • 13 hours of daylight per day in April in San Francisco13
    13 hours of daylight per day
  • No heat & humidity in April in San Francisco0
    No heat & humidity
  • 40 mm monthly rainfall in April in San Francisco40
    40 mm of monthly rainfall
  • UV (maximum) index 7 (High) in April in San Francisco7
    7 (High) UV index
  • 12°C sea temperature in April in San Francisco12
    12°C sea temperature
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The April weather guide for California (San Francisco) 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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Metric (°C / mm)  |  Imperial (°F / inches)

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More about San Francisco

How warm is it in San Francisco in April?

Daytime temperatures usually reach 17°C in San Francisco in April, falling to 9°C at night.

How sunny is it in San Francisco in April?

There are normally 10 hours of bright sunshine each day in San Francisco in April - that's 78% of daylight hours.

How warm is the sea around San Francisco in April?

The average sea temperature around San Francisco in April is 12°C.

Does it rain in San Francisco in April?

There are usually 6 days with some rain in San Francisco in April and the average monthly rainfall is 40mm.

San Francisco April sunrise & sunset times

Browse the sunrise and sunset times for San Francisco in April 2023. Select a month to view San Francisco sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st April 2023 06:55 19:33
Saturday, 15th April 2023 06:35 19:45
Sunday, 30th April 2023 06:15 19:59

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