Weather in San Jose in December
In an average December, San Jose sees a daily high around 57°F and a low around 43°F, based on 1980–2026 of local climate records.
| Average high | 57°F |
|---|---|
| Typical high range | 52°F to 64°F |
| Average low | 43°F |
| Typical low range | 35°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
75°F
2021-12-01
Lowest
37°F
1990-12-22
Low
Highest
58°F
2005-12-22
Lowest
22°F
1990-12-22
Feels-like
Highest
58°F
2005-12-22
Lowest
15°F
1990-12-22
Humidity
Highest
12.5 g/m³
2014-12-03
Lowest
1.9 g/m³
1990-12-22
Wind
Highest
26 mph
2025-12-24
Lowest
3 mph
1985-12-31
Gust
Highest
77 mph
1995-12-12
Lowest
8 mph
1993-12-28
Precip
Wettest
11.36 in
2002
Driest
0.03 in
1989
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