San Jose weather in January
January in San Jose averages 60°F by day and 42°F at night, with 2.8 inches of precipitation. It is the 11th-warmest and 1st-wettest month of the year here.
- Average high
- 60°F+0° vs December
- Average low
- 42°F1 nights below freezing
- Precipitation
- 2.8 in5 days with 0.1 in. or more
- Snow
- 0.0 in0 days at 90°F+
Is January a good time to visit San Jose?
January is cool, with highs around 60°F. The most comfortable months overall are February to November.
What to do in San Jose in January
Mix it up: Rosicrucian Egyptian Museum, Rosicrucian Park, Happy Hollow Park & Zoo, San Jose Museum of Art. All things to do in San Jose.
On January 15 the sun rises at 7:20 am and sets at 5:13 pm, giving 9h 53m of daylight. Daylight all year.
What to pack for San Jose in January
- Long sleeves, a warm jacket and closed shoes
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
January nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| San Jose | 60°F | 42°F | 2.8 in | |
| Santa Clara, CA | 4 mi | 60°F | 42°F | 2.8 in |
| Milpitas, CA | 7 mi | 60°F | 42°F | 2.8 in |
| Sunnyvale, CA | 8 mi | 59°F | 42°F | 2.5 in |
| Mountain View, CA | 11 mi | 59°F | 42°F | 2.5 in |
| Fremont, CA | 17 mi | 59°F | 43°F | 3.0 in |
| Redwood City, CA | 22 mi | 59°F | 41°F | 3.8 in |
Warmer places in January
Big cities with comfortable January highs between 68°F and 86°F:
Frequently asked questions
What is the weather like in San Jose in January?
In January, San Jose averages a high of 60°F and a low of 42°F, with 2.8 inches of precipitation (NOAA 1991-2020 normals).
Is January a good time to visit San Jose?
January is cool to cold in San Jose, with average highs of 60°F. Pack warm layers.
Does it snow in San Jose in January?
Rarely. The January snowfall normal is under half an inch.
Before and after: San Jose in December and San Jose in February. All twelve months: San Jose weather by month.
NOAA NCEI 1991-2020 climate normals, station San Jose, CA, 2.8 miles from the city center; snowfall from San Jose, CA.