Average annual temperature is 16.1 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: 0.4 °C
Number of sunny days: 254 days
Number of rainy days: 111 days
Look at detailed online map of Irvine-Lake Forest
* Weather data for Irvine-Lake Forest United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 20.6 | 25.0 | 20.6 | 30.6 | 25.0 | 27.4 | 35.1 | 34.9 | 34.0 | 33.7 | 28.2 | 26.1 |
| Average daytime temperature (°C) | 14.7 | 16.2 | 14.8 | 20.5 | 20.1 | 22.0 | 30.0 | 28.6 | 25.9 | 26.4 | 23.0 | 19.1 |
| Average temperature (°C) | 10.5 | 10.7 | 10.3 | 14.1 | 14.6 | 16.4 | 22.3 | 22.3 | 20.0 | 19.9 | 17.2 | 14.3 |
| Average night temperature (°C) | 7.4 | 6.5 | 7.2 | 9.7 | 11.0 | 12.4 | 16.6 | 17.6 | 16.0 | 15.2 | 12.5 | 10.4 |
| Absolute minimum temperature (°C) | 4.0 | 1.0 | 0.4 | 4.8 | 8.0 | 10.6 | 11.9 | 15.2 | 13.4 | 10.7 | 7.7 | 7.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.8 | 8.3 | 7.8 | 11.0 | 10.8 | 11.4 | 13.0 | 11.1 | 10.2 | 10.3 | 8.9 | 7.9 |
| Precipitation (mm) | 240 | 108 | 199 | 6 | 29 | 9 | 0 | 62 | 28 | 10 | 14 | 62 |
| Sunny days | 16 | 16 | 10 | 25 | 18 | 20 | 31 | 26 | 23 | 25 | 21 | 23 |
| Rainy days | 15 | 12 | 21 | 5 | 13 | 10 | 0 | 5 | 7 | 6 | 9 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Irvine-Lake Forest during the most sunny months:
The largest precipitation sum in Irvine-Lake Forest is at