Average annual temperature is 26.7 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: 16.4 °C
Number of sunny days: 118 days
Number of rainy days: 247 days
Look at detailed online map of San Jerónimo
* Weather data for San Jerónimo El Salvador is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.5 | 36.3 | 37.6 | 38.2 | 39.2 | 33.1 | 35.4 | 34.6 | 33.1 | 32.2 | 33.5 | 34.9 |
| Average daytime temperature (°C) | 33.5 | 35.2 | 34.9 | 35.7 | 35.1 | 31.7 | 33.0 | 32.5 | 32.2 | 30.1 | 30.5 | 33.2 |
| Average temperature (°C) | 26.1 | 27.3 | 27.2 | 28.1 | 28.1 | 26.2 | 27.0 | 26.8 | 26.4 | 25.2 | 25.4 | 26.4 |
| Average night temperature (°C) | 20.1 | 20.7 | 21.4 | 22.3 | 23.0 | 22.4 | 22.7 | 22.7 | 22.4 | 21.9 | 21.5 | 21.1 |
| Absolute minimum temperature (°C) | 17.1 | 18.8 | 20.1 | 21.1 | 21.2 | 21.4 | 21.8 | 21.0 | 21.2 | 20.0 | 19.3 | 16.4 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 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 | 10.9 | 11.3 | 11.4 | 11.0 | 9.5 | 10.8 | 10.4 | 10.7 | 9.3 | 10.0 | 10.5 |
| Precipitation (mm) | 5 | 0 | 35 | 37 | 117 | 261 | 179 | 224 | 241 | 329 | 186 | 29 |
| Sunny days | 21 | 27 | 16 | 14 | 7 | 1 | 3 | 2 | 3 | 0 | 8 | 16 |
| Rainy days | 10 | 1 | 15 | 16 | 24 | 29 | 28 | 29 | 27 | 31 | 22 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Jerónimo is at