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San Francisco weather in January 2023
- 1313°C max day temperature
- 1010 days with some rainfall
- 77°C min night temperature
- 1010 hours of daylight per day
- 0No heat & humidity
- 125125 mm of monthly rainfall
- 22 (Low) UV index
- 1111°C sea temperature
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The January 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 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 January sunrise & sunset times
Browse the sunrise and sunset times for San Francisco in January 2023. Select a month to view San Francisco sunrise and sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Sunday, 1st January 2023||07:25||17:02|
|Monday, 16th January 2023||07:24||17:16|
|Tuesday, 31st January 2023||07:14||17:32|
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