Average annual temperature is 21.7 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: 1.3 °C
Number of sunny days: 146 days
Number of rainy days: 219 days
Look at detailed online map of San Jose
* Weather data for San Jose 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) | 27.9 | 29.2 | 30.6 | 30.9 | 31.6 | 35.2 | 36.6 | 37.0 | 34.7 | 29.3 | 27.3 | 26.5 |
| Average daytime temperature (°C) | 20.9 | 24.5 | 24.6 | 26.8 | 28.1 | 30.8 | 33.2 | 33.4 | 30.5 | 26.2 | 22.0 | 19.5 |
| Average temperature (°C) | 14.8 | 18.3 | 19.0 | 21.5 | 23.1 | 25.8 | 28.1 | 28.5 | 25.8 | 21.9 | 17.7 | 15.2 |
| Average night temperature (°C) | 10.4 | 14.1 | 14.8 | 17.4 | 19.0 | 22.4 | 24.7 | 25.0 | 22.2 | 18.4 | 14.3 | 11.9 |
| Absolute minimum temperature (°C) | 1.3 | 4.8 | 4.7 | 10.2 | 13.3 | 17.3 | 23.0 | 23.1 | 17.9 | 10.8 | 4.1 | 3.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.2 | 9.0 | 9.5 | 9.9 | 11.3 | 11.0 | 11.3 | 11.3 | 9.9 | 9.6 | 6.9 | 6.8 |
| Precipitation (mm) | 41 | 30 | 81 | 128 | 98 | 184 | 144 | 84 | 141 | 49 | 92 | 84 |
| Sunny days | 19 | 21 | 15 | 10 | 10 | 3 | 4 | 5 | 9 | 17 | 16 | 17 |
| Rainy days | 12 | 7 | 16 | 20 | 21 | 27 | 27 | 26 | 21 | 14 | 14 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Jose is at