Is San Francisco hot in April?
Days are typically cool at 17.6°C, while nights average 10°C.
United States · 1991–2020 normal
San Francisco in
April.
Typical April weather in San Francisco: 17.6°C by day, 10°C at night, 41 mm of rain over 5.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high17.6°C
Typical low10°C
Rain41 mm
Wet days5.3
In the year-round weather comparison, April scores 67 out of 100 (September leads the year at 89). Daylight is calculated as 13 h 07 from latitude 37.77°. Open-water sea temperature is 11.5°C (21 km from the place centre).
April at a glance
What is San Francisco like in April?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 41 mm across about 5 wet days.
How much daylight is there?
There are about 13 h 07 between sunrise and sunset at mid-month, calculated from the place latitude.
Is April a good time to visit?
April ranks 7 of 12 in our weather comparison; September ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5391959
- NOAA station
- USW00023272 · SAN FRANCISCO DWTN
- Station distance
- 0.8 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for San Francisco is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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