Average annual temperature is 14.1 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 2.3 °C
Number of sunny days: 264 days
Number of rainy days: 101 days
Look at detailed online map of San Geronimo
* Weather data for San Geronimo 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) | 16.9 | 19.1 | 17.6 | 29.4 | 29.9 | 31.0 | 38.7 | 37.9 | 30.9 | 34.5 | 25.9 | 19.3 |
| Average daytime temperature (°C) | 13.7 | 13.6 | 13.4 | 19.4 | 20.4 | 22.5 | 29.6 | 29.4 | 24.8 | 25.1 | 18.4 | 15.2 |
| Average temperature (°C) | 9.7 | 8.3 | 9.1 | 12.6 | 14.3 | 15.9 | 19.7 | 20.1 | 17.8 | 17.4 | 13.0 | 11.0 |
| Average night temperature (°C) | 6.9 | 4.5 | 6.2 | 7.8 | 10.3 | 11.6 | 12.8 | 14.4 | 13.3 | 12.5 | 8.9 | 8.0 |
| Absolute minimum temperature (°C) | 2.4 | 2.3 | 2.3 | 4.0 | 7.6 | 9.4 | 10.7 | 11.6 | 10.7 | 5.8 | 3.6 | 4.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.9 | 7.7 | 7.9 | 11.4 | 11.8 | 12.9 | 13.1 | 12.2 | 10.8 | 9.2 | 7.8 | 5.7 |
| Precipitation (mm) | 344 | 83 | 307 | 13 | 54 | 1 | 0 | 0 | 4 | 13 | 70 | 163 |
| Sunny days | 12 | 14 | 9 | 28 | 23 | 29 | 31 | 29 | 27 | 24 | 21 | 17 |
| Rainy days | 19 | 14 | 22 | 2 | 8 | 1 | 0 | 2 | 3 | 7 | 9 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit San Geronimo during the most sunny months:
The largest precipitation sum in San Geronimo is at