December weather in San Francisco, United States
Averages from 155 days in December across 2020–2024.
Typical conditions
| Average high | 13.5°C |
|---|---|
| Average low | 8.1°C |
| Average mean | 10.5°C |
| Total precipitation | 870.6 mm |
| Rainy days | 73 |
| Average precipitation hours | 4.8 h |
| Average max wind speed | 21 km/h |
| Average sunshine | 6.4 h/day |
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