Spring
72°F / 49°F
March, April, May: about 5.5 in of rain.
Plan a visit
Best time to visit Fairfield
April, May, October bring mild highs and the least rain.
Best time to visit
April · May · October
Highs between 65°F and 85°F with the least rain of the year. Hottest: July (90°F). Coldest nights: December (40°F). Wettest: December.
Fairfield by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Wet | 57°F / 40°F | 4.7 in | |
| February | Wet | 62°F / 43°F | 5.0 in | Valentine’s Day |
| March | Wet | 66°F / 45°F | 3.3 in | St. Patrick’s Day |
| April | Great | 71°F / 48°F | 1.5 in | |
| May | Great | 78°F / 52°F | 0.70 in | |
| June | Good | 85°F / 56°F | 0.20 in | Fourth of July |
| July | Hot | 90°F / 58°F | 0.00 in | Fourth of July |
| August | Hot | 89°F / 58°F | 0.00 in | |
| September | Good | 87°F / 57°F | 0.10 in | Halloween |
| October | Great | 78°F / 52°F | 1.1 in | Halloween |
| November | Great | 66°F / 45°F | 2.5 in | Halloween, Thanksgiving, Christmas |
| December | Wet | 57°F / 40°F | 5.4 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 Fairfield station, not a forecast.
Around Fairfield
See Fairfield before you go
THINGS TO DO · YOUTUBE SHORT
5 things to do Fairfield CA
A local activity Short shared by Visit Fairfield, California.
Watch on YouTube ↗
THINGS TO DO · YOUTUBE SHORT
8 Underrated Thing to do In California, Fairfield Edition!
A local activity Short shared by Discover California.
Watch on YouTube ↗Questions
What is the best month to visit Fairfield?
April, May, October: highs between 65°F and 85°F with the least rain.
What is the hottest month in Fairfield?
July, averaging 90°F highs.
What is the coldest month in Fairfield?
December, with average lows of 40°F.
What is the rainiest month in Fairfield?
December, averaging 5.4 in of precipitation.
When are the big holidays in Fairfield?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.