Weather in San Francisco: January
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Average day temperature: | 54.7°F |
| Average night temperature: | 49.9°F | |
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Sea water temperature: | 52.4°F |
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Number of sunny days: | 15 days |
| Day length: | 9.6 - 10.3 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.3 in. | |
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forecast
| San Francisco |
temperature
| San Francisco |
Air temperature in January, °F
The highest day temperature during January of 2024 was 62°F. At the same time the lowest night temperature was 45°F. Day and night temperature averages during January were 55.4°F and 52.4°F.
Sea water temperature in San Francisco in January, °F
The average sea water temperature in January of 2024 was 54.8°F. The highest and lowest sea temperatures during the month were 56.7°F and 53.4°F.
Number of sunny, partly cloudy and cloudy days in January is almost equal.
Precipitation total in January, in.
Precipitation total value in San Francisco in January is 2.9 in. Other months of the year show relatively similar values.
The average wind speed value in January is 7.8 mph It makes January one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.8.
Best time for vacation in San Francisco
San Francisco on a weather map
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