Average annual temperature is 22.2 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 9.1 °C
Number of sunny days: 96 days
Number of rainy days: 269 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) | 31.4 | 33.5 | 34.1 | 35.8 | 35.4 | 35.5 | 31.1 | 32.6 | 31.9 | 31.4 | 30.1 | 30.4 |
| Average daytime temperature (°C) | 27.3 | 28.4 | 31.3 | 33.3 | 32.5 | 32.0 | 29.2 | 30.3 | 30.3 | 28.5 | 26.3 | 26.7 |
| Average temperature (°C) | 19.6 | 20.5 | 22.7 | 23.7 | 23.8 | 24.3 | 22.8 | 23.1 | 22.9 | 22.2 | 20.9 | 20.2 |
| Average night temperature (°C) | 14.2 | 15.0 | 16.1 | 16.0 | 17.8 | 18.7 | 18.5 | 18.3 | 18.2 | 18.2 | 17.4 | 15.8 |
| Absolute minimum temperature (°C) | 9.1 | 12.3 | 13.3 | 13.1 | 14.2 | 17.3 | 16.4 | 16.7 | 16.6 | 15.4 | 12.6 | 9.4 |
| 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 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 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) | 10.3 | 10.6 | 10.9 | 11.4 | 11.3 | 11.3 | 11.0 | 10.5 | 10.7 | 9.8 | 7.8 | 9.4 |
| Precipitation (mm) | 15 | 15 | 21 | 20 | 126 | 146 | 244 | 174 | 158 | 250 | 188 | 17 |
| Sunny days | 16 | 16 | 16 | 13 | 8 | 5 | 0 | 4 | 0 | 1 | 7 | 10 |
| Rainy days | 15 | 12 | 15 | 17 | 23 | 25 | 31 | 27 | 30 | 30 | 23 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Jerónimo is at