Weather in San Francisco in December
In an average December, San Francisco sees a daily high around 56°F and a low around 47°F, based on 1980–2026 of local climate records.
| Average high | 56°F |
|---|---|
| Typical high range | 52°F to 60°F |
| Average low | 47°F |
| Typical low range | 41°F to 54°F |
| Average daily precipitation | 0.10 in |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
68°F
2020-12-07
Lowest
37°F
1990-12-22
Low
Highest
59°F
2014-12-21
Lowest
27°F
1990-12-22
Feels-like
Highest
59°F
2014-12-21
Lowest
18°F
1990-12-21
Humidity
Highest
12.8 g/m³
2014-12-09
Lowest
2.1 g/m³
1990-12-22
Wind
Highest
39 mph
1983-12-03
Lowest
4 mph
2010-12-11
Gust
Highest
68 mph
1995-12-12
Lowest
8 mph
2017-12-24
Precip
Wettest
10.85 in
2002
Driest
0.07 in
1989
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