Average annual temperature is 26.5 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: 16.6 °C
Number of sunny days: 118 days
Number of rainy days: 247 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) | 35.6 | 35.8 | 38.6 | 38.2 | 37.4 | 33.2 | 34.7 | 34.9 | 34.2 | 32.2 | 35.0 | 35.8 |
| Average daytime temperature (°C) | 33.4 | 34.7 | 35.1 | 35.7 | 34.1 | 31.3 | 32.1 | 32.3 | 32.6 | 30.5 | 30.9 | 33.2 |
| Average temperature (°C) | 25.9 | 26.7 | 27.1 | 27.8 | 27.6 | 26.1 | 26.7 | 26.7 | 26.5 | 25.3 | 25.6 | 26.3 |
| Average night temperature (°C) | 20.5 | 20.8 | 22.0 | 22.5 | 23.0 | 22.6 | 22.7 | 22.8 | 22.5 | 22.0 | 21.7 | 21.4 |
| Absolute minimum temperature (°C) | 16.6 | 18.6 | 20.7 | 21.1 | 22.1 | 21.7 | 21.5 | 21.4 | 21.3 | 20.8 | 19.9 | 17.3 |
| 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 | 11.3 | 10.9 | 10.1 | 10.6 | 10.3 | 10.3 | 9.3 | 9.6 | 10.4 |
| Precipitation (mm) | 6 | 0 | 53 | 98 | 165 | 408 | 198 | 185 | 257 | 334 | 122 | 7 |
| Sunny days | 20 | 25 | 18 | 12 | 9 | 0 | 4 | 3 | 1 | 2 | 5 | 19 |
| Rainy days | 11 | 3 | 13 | 18 | 22 | 30 | 27 | 28 | 29 | 29 | 25 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chalatenango is at