Average annual temperature is 15.2 °C
Absolute maximum temperature: 43.1 °C
Absolute minimum temperature: -11.6 °C
Number of sunny days: 267 days
Number of rainy days: 88 days
Number of snow days: 10 days
Look at detailed online map of San Rafael
* Weather data for San Rafael 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) | 19.5 | 19.7 | 23.7 | 30.0 | 31.7 | 38.5 | 43.1 | 40.4 | 37.2 | 29.5 | 28.0 | 21.0 |
| Average daytime temperature (°C) | 11.0 | 13.9 | 17.2 | 23.4 | 27.0 | 31.2 | 36.6 | 34.8 | 30.3 | 22.8 | 16.7 | 11.0 |
| Average temperature (°C) | 3.9 | 5.2 | 9.2 | 14.3 | 19.1 | 23.2 | 28.5 | 27.4 | 23.1 | 14.9 | 8.8 | 4.3 |
| Average night temperature (°C) | -1.6 | -1.1 | 2.6 | 6.5 | 12.4 | 15.9 | 20.8 | 20.5 | 16.1 | 8.4 | 2.8 | -0.7 |
| Absolute minimum temperature (°C) | -11.6 | -10.0 | -4.9 | -1.7 | 7.3 | 10.4 | 16.3 | 16.5 | 12.0 | -4.8 | -5.3 | -5.7 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 8.1 | 8.9 | 10.1 | 11.5 | 11.3 | 12.6 | 12.6 | 12.1 | 10.6 | 10.0 | 8.3 | 7.8 |
| Precipitation (mm) | 2 | 16 | 11 | 6 | 73 | 20 | 5 | 13 | 32 | 36 | 5 | 54 |
| Sunny days | 27 | 20 | 27 | 25 | 12 | 18 | 21 | 21 | 21 | 25 | 24 | 26 |
| Rainy days | 2 | 4 | 2 | 5 | 19 | 12 | 10 | 10 | 9 | 6 | 5 | 4 |
| Snow days | 2 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The largest precipitation sum in San Rafael is at