Typical June weather
Napa
California · June
78° days
52° nights
rain is rare · 15 hours of daylight
What to pack
- Light jacket
- Sunscreen
What June feels like
June is when the fog starts pushing up from San Pablo Bay overnight and burning off by mid-morning — that daily swing is the entire reason the grapes work here. Up-valley toward Calistoga it runs noticeably hotter than at the south end.
Rain is genuinely rare — most years, June stays dry start to finish.
The numbers
| Typical high | 78° |
|---|---|
| Typical low | 52° |
| Days with real rain | 0 |
| Total rain | 0.2 in |
| Sunrise / sunset (mid-month) | 5:45 am / 8:34 pm |