Spring
74°F / 51°F
March, April, May: about 3.2 in of rain.
Plan a visit
Best time to visit Orange County
May, June, October bring mild highs and the least rain.
Orange County by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Wet | 68°F / 43°F | 3.1 in | |
| February | Wet | 69°F / 45°F | 3.4 in | Valentine’s Day |
| March | Great | 72°F / 48°F | 2.1 in | St. Patrick’s Day |
| April | Great | 74°F / 50°F | 0.80 in | |
| May | Great | 77°F / 55°F | 0.30 in | |
| June | Great | 80°F / 58°F | 0.10 in | Fourth of July |
| July | Good | 85°F / 61°F | 0.00 in | Fourth of July |
| August | Good | 87°F / 63°F | 0.00 in | |
| September | Good | 87°F / 61°F | 0.20 in | Halloween |
| October | Great | 84°F / 55°F | 0.70 in | Halloween |
| November | Great | 76°F / 47°F | 1.2 in | Halloween, Thanksgiving, Christmas |
| December | Great | 70°F / 43°F | 2.2 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 Tustin Irvine Rch station, not a forecast.
Questions
What is the best month to visit Orange County?
May, June, October: highs between 65°F and 85°F with the least rain.
What is the hottest month in Orange County?
August, averaging 87°F highs.
What is the coldest month in Orange County?
December, with average lows of 43°F.
What is the rainiest month in Orange County?
February, averaging 3.4 in of precipitation.
When are the big holidays in Orange County?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.