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San Francisco weather in October 2025
Expect 21°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in San Francisco in October based on long-term weather averages. There is usually 4 days with some rainfall and 35 mm of average monthly rainfall in October.
- 21°C max day temperature
21 - 8 hours of sunshine per day
- 4 days with some rainfall
4 - 12°C min night temperature
12 - 11 hours of daylight per day
11 - No heat & humidity
0 - 35 mm of monthly rainfall
35 - 5 (Moderate) UV index
5 - 14°C sea temperature
14
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Recommended for California
The October 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.
Metric (°C / mm) | Imperial (°F / inches)
More about San Francisco
How hot is it in San Francisco in October?
Daytime temperatures usually reach 21°C in San Francisco in October, falling to 12°C at night.
How sunny is it in San Francisco in October?
There are normally 8 hours of bright sunshine each day in San Francisco in October - that's 72% of daylight hours.
How warm is the sea around San Francisco in October?
The average sea temperature around San Francisco in October is 14°C.
Does it rain in San Francisco in October?
There are usually 4 days with some rain in San Francisco in October and the average monthly rainfall is 35mm.
San Francisco October sunrise & sunset times
Browse the sunrise and sunset times for San Francisco in October 2025. Select a month to view San Francisco sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Wednesday, 1st October 2025 | 06:06 | 17:52 |
| Thursday, 16th October 2025 | 06:19 | 17:30 |
| Friday, 31st October 2025 | 06:34 | 17:12 |
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