Average annual temperature is 23.4 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: 13.1 °C
Number of sunny days: 103 days
Number of rainy days: 262 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) | 32.0 | 33.4 | 33.8 | 34.6 | 35.9 | 32.3 | 33.1 | 33.3 | 32.6 | 30.2 | 32.2 | 33.1 |
| Average daytime temperature (°C) | 30.1 | 30.7 | 31.2 | 32.2 | 32.1 | 29.4 | 30.4 | 30.5 | 30.2 | 28.3 | 29.4 | 30.3 |
| Average temperature (°C) | 22.5 | 23.1 | 23.2 | 24.2 | 24.7 | 23.4 | 24.1 | 23.8 | 23.2 | 22.4 | 23.0 | 23.1 |
| Average night temperature (°C) | 17.0 | 17.4 | 17.7 | 18.5 | 19.2 | 19.6 | 19.2 | 19.0 | 18.3 | 18.5 | 17.8 | 17.5 |
| Absolute minimum temperature (°C) | 13.3 | 15.4 | 15.3 | 17.0 | 17.6 | 18.3 | 17.9 | 17.8 | 16.5 | 17.0 | 14.5 | 13.1 |
| 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 | 12.9 | 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) | 10.5 | 10.9 | 11.2 | 11.4 | 11.1 | 10.2 | 10.7 | 9.9 | 10.1 | 9.3 | 10.1 | 10.3 |
| Precipitation (mm) | 8 | 2 | 29 | 52 | 174 | 209 | 208 | 183 | 270 | 319 | 63 | 9 |
| Sunny days | 20 | 24 | 8 | 9 | 4 | 0 | 2 | 0 | 0 | 2 | 11 | 23 |
| Rainy days | 11 | 4 | 23 | 21 | 27 | 30 | 29 | 31 | 30 | 29 | 19 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Jerónimo is at