Spring
73°F / 48°F
March, April, May: about 5.4 in of rain.
Plan a visit
Best time to visit Vallejo
May, June, October bring mild highs and the least rain.
Best time to visit
May · June · October
Highs between 65°F and 85°F with the least rain of the year. Hottest: September (86°F). Coldest nights: January (42°F). Wettest: January.
Vallejo by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Wet | 57°F / 42°F | 4.5 in | |
| February | Wet | 63°F / 45°F | 3.6 in | Valentine’s Day |
| March | Wet | 68°F / 46°F | 3.2 in | St. Patrick’s Day |
| April | Great | 73°F / 47°F | 1.4 in | |
| May | Great | 78°F / 51°F | 0.80 in | |
| June | Great | 83°F / 54°F | 0.20 in | Fourth of July |
| July | Good | 85°F / 56°F | 0.00 in | Fourth of July |
| August | Good | 86°F / 56°F | 0.00 in | |
| September | Good | 86°F / 57°F | 0.10 in | Halloween |
| October | Great | 79°F / 54°F | 1.0 in | Halloween |
| November | Great | 66°F / 47°F | 2.2 in | Halloween, Thanksgiving, Christmas |
| December | Wet | 58°F / 42°F | 4.5 in | Christmas, New Year’s Eve |
“Great” means highs between 65°F and 85°F with fewer than 10 wet days. Averages are NOAA’s 1991–2020 normals for the Vallejo station, not a forecast.
Around Vallejo
See Vallejo before you go
THINGS TO DO · YOUTUBE SHORT
Vallejo, California. 🤩
A local activity Short shared by Where_I_Lovetogo.
Watch on YouTube ↗
THINGS TO DO · YOUTUBE SHORT
Vallejo, CA reptile show quick tour🦎
A local activity Short shared by The Herp Room.
Watch on YouTube ↗Questions
What is the best month to visit Vallejo?
May, June, October: highs between 65°F and 85°F with the least rain.
What is the hottest month in Vallejo?
September, averaging 86°F highs.
What is the coldest month in Vallejo?
January, with average lows of 42°F.
What is the rainiest month in Vallejo?
January, averaging 4.5 in of precipitation.
When are the big holidays in Vallejo?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.