Irvine, CA Weather & Climate Normals
What a normal year in Irvine actually looks like
On the 30-year record NOAA keeps for Irvine, CA, the comfort score comes out to 87/100, very mild year-round: Many months fall in a comfortable temperature range with limited snow or seasonal extremes. Only 11 months a year land in the 55–75°F range this site treats as mild.
How much Irvine's weather actually swings
Average temperatures in Irvine run from 56°F in Jan up to 75°F in Aug, a 19.6°F seasonal swing, one of the smaller gaps in this dataset.
Irvine, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 68°F | 43°F | 3.09in | 0in |
| Feb | 69°F | 45°F | 3.39in | 0in |
| Mar | 72°F | 48°F | 2.11in | 0in |
| Apr | 74°F | 50°F | 0.8in | 0in |
| May | 77°F | 55°F | 0.32in | 0in |
| Jun | 80°F | 58°F | 0.09in | 0in |
| Jul | 85°F | 61°F | 0.01in | 0in |
| Aug | 87°F | 63°F | 0in | 0in |
| Sep | 87°F | 61°F | 0.18in | 0in |
| Oct | 84°F | 55°F | 0.67in | 0in |
| Nov | 76°F | 47°F | 1.21in | 0in |
| Dec | 70°F | 43°F | 2.25in | 0in |
If you're timing a visit, most of the year (11 of 12 months) are Irvine's mildest stretch; if you're moving there, you should plan around Aug's heat instead.
How wet Irvine actually gets
Over a typical year, Irvine sees about 14.12in of precipitation a year across roughly 32 days with measurable rain or snow, with 0in of snow a year.
Irvine against the rest of the country
Out of 4876 cities scored here, Irvine comes in at 82; within CA alone it ranks 82 of 429. Population is about 318,683.
Checking the actual forecast
These figures come from Tustin Irvine Rch, CA US, the NOAA station 1.9 miles from Irvine, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is