Typical December weather
Napa
California · December
57° days
38° nights
about 7 rainy days · 9½ hours of daylight
What to pack
- Sweater
What December feels like
December is the coldest month and one of the wettest, and frost settles on the valley floor often enough that the growers keep the fans ready. Cabernet Season is what the wineries call it — reduced rates, open tables, and pouring in front of a fire instead of a crowd.
Expect about 7 days with real rain — enough to notice, not enough to plan around. about 11 nights dip below freezing.
The numbers
| Typical high | 57° |
|---|---|
| Typical low | 38° |
| Days with real rain | 7 |
| Total rain | 3.8 in |
| Sunrise / sunset (mid-month) | 7:19 am / 4:49 pm |