Spring
76°F / 48°F
March, April, May: about 3.2 in of rain.
Plan a visit
Best time to visit San Bernardino
April, May, October bring mild highs and the least rain.
San Bernardino by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Great | 67°F / 41°F | 2.8 in | |
| February | Wet | 67°F / 42°F | 3.0 in | Valentine’s Day |
| March | Great | 71°F / 45°F | 2.0 in | St. Patrick’s Day |
| April | Great | 76°F / 48°F | 0.90 in | |
| May | Great | 80°F / 52°F | 0.30 in | |
| June | Hot | 89°F / 56°F | 0.10 in | Fourth of July |
| July | Very hot | 95°F / 63°F | 0.10 in | Fourth of July |
| August | Very hot | 96°F / 63°F | 0.10 in | |
| September | Hot | 92°F / 60°F | 0.10 in | Halloween |
| October | Great | 83°F / 53°F | 0.50 in | Halloween |
| November | Great | 75°F / 45°F | 0.90 in | Halloween, Thanksgiving, Christmas |
| December | Great | 67°F / 40°F | 2.0 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 Redlands station, not a forecast.
Questions
What is the best month to visit San Bernardino?
April, May, October: highs between 65°F and 85°F with the least rain.
What is the hottest month in San Bernardino?
August, averaging 96°F highs.
What is the coldest month in San Bernardino?
December, with average lows of 40°F.
What is the rainiest month in San Bernardino?
February, averaging 3.0 in of precipitation.
When are the big holidays in San Bernardino?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.