Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 16.9 °C
Number of sunny days: 119 days
Number of rainy days: 246 days
Look at detailed online map of Chalatenango
* Weather data for Chalatenango 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) | 36.6 | 36.5 | 39.3 | 38.8 | 37.9 | 33.5 | 35.7 | 34.5 | 34.3 | 33.3 | 36.1 | 36.9 |
| Average daytime temperature (°C) | 34.3 | 35.3 | 35.8 | 36.1 | 34.4 | 31.6 | 32.6 | 32.5 | 33.2 | 31.1 | 31.6 | 34.6 |
| Average temperature (°C) | 26.6 | 27.4 | 27.7 | 28.2 | 27.8 | 26.3 | 27.0 | 26.9 | 26.8 | 25.6 | 26.0 | 27.3 |
| Average night temperature (°C) | 20.4 | 20.9 | 22.0 | 22.4 | 22.8 | 22.5 | 22.9 | 22.8 | 22.4 | 22.0 | 21.5 | 21.9 |
| Absolute minimum temperature (°C) | 16.9 | 18.7 | 20.6 | 21.4 | 21.4 | 21.7 | 21.7 | 21.1 | 21.3 | 21.1 | 17.7 | 17.9 |
| 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 | 12.9 | 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) | 10.3 | 10.8 | 11.1 | 11.4 | 11.0 | 10.0 | 10.7 | 10.3 | 10.2 | 9.4 | 9.6 | 10.4 |
| Precipitation (mm) | 4 | 0 | 37 | 76 | 130 | 341 | 148 | 164 | 193 | 285 | 117 | 6 |
| Sunny days | 24 | 27 | 12 | 12 | 9 | 1 | 4 | 3 | 3 | 1 | 6 | 17 |
| Rainy days | 7 | 1 | 19 | 18 | 22 | 29 | 27 | 28 | 27 | 30 | 24 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chalatenango is at