Weather in San Diego in December
In an average December, San Diego sees a daily high around 65°F and a low around 45°F, based on 1980–2026 of local climate records.
| Average high | 65°F |
|---|---|
| Typical high range | 56°F to 73°F |
| Average low | 45°F |
| Typical low range | 38°F to 51°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
83°F
1980-12-16
Lowest
46°F
1990-12-22
Low
Highest
60°F
2014-12-04
Lowest
27°F
1990-12-23
Feels-like
Highest
82°F
2010-12-12
Lowest
19°F
1990-12-23
Humidity
Highest
13.6 g/m³
2014-12-04
Lowest
1.4 g/m³
2024-12-11
Wind
Highest
22 mph
2009-12-08
Lowest
3 mph
1981-12-07
Gust
Highest
52 mph
2009-12-08
Lowest
9 mph
1996-12-31
Precip
Wettest
9.41 in
2010
Driest
0.05 in
2017
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