Average annual temperature is 26.1 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: 15.5 °C
Number of sunny days: 133 days
Number of rainy days: 232 days
Look at detailed online map of San Jerónimo
* Weather data for San Jerónimo Guatemala is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.0 | 35.2 | 36.3 | 37.3 | 37.8 | 34.7 | 35.6 | 35.2 | 34.8 | 33.0 | 33.5 | 35.1 |
| Average daytime temperature (°C) | 31.9 | 32.4 | 34.3 | 35.3 | 35.1 | 32.3 | 33.1 | 33.2 | 33.2 | 31.0 | 30.6 | 31.7 |
| Average temperature (°C) | 24.6 | 24.9 | 26.2 | 27.2 | 27.7 | 26.2 | 27.0 | 27.0 | 26.6 | 25.3 | 25.3 | 25.0 |
| Average night temperature (°C) | 19.6 | 19.9 | 20.8 | 21.8 | 22.7 | 22.3 | 23.1 | 22.9 | 22.4 | 21.8 | 21.5 | 20.5 |
| Absolute minimum temperature (°C) | 15.5 | 18.1 | 19.4 | 20.4 | 21.3 | 21.1 | 21.6 | 20.7 | 21.1 | 20.6 | 17.7 | 16.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.8 | 11.1 | 11.4 | 11.0 | 10.3 | 10.9 | 10.3 | 10.2 | 9.7 | 9.9 | 10.3 |
| Precipitation (mm) | 2 | 1 | 21 | 24 | 148 | 204 | 94 | 121 | 163 | 189 | 82 | 4 |
| Sunny days | 23 | 23 | 19 | 13 | 10 | 0 | 1 | 0 | 0 | 4 | 12 | 28 |
| Rainy days | 8 | 5 | 12 | 17 | 21 | 30 | 30 | 31 | 30 | 27 | 18 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Jerónimo is at