Average annual temperature is 28.0 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 135 days
Number of rainy days: 230 days
Look at detailed online map of Altomiro
* Weather data for Altomiro 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) | 37.7 | 38.3 | 40.1 | 39.6 | 40.8 | 35.1 | 37.9 | 36.9 | 35.3 | 33.4 | 35.7 | 36.7 |
| Average daytime temperature (°C) | 35.2 | 36.6 | 35.7 | 36.5 | 35.9 | 32.6 | 34.8 | 33.6 | 33.2 | 31.0 | 32.1 | 35.0 |
| Average temperature (°C) | 27.8 | 28.8 | 28.3 | 29.3 | 29.3 | 27.3 | 28.5 | 28.0 | 27.8 | 26.1 | 26.7 | 28.0 |
| Average night temperature (°C) | 21.6 | 22.0 | 22.9 | 24.1 | 24.3 | 23.4 | 23.8 | 23.9 | 23.5 | 22.8 | 22.4 | 22.2 |
| Absolute minimum temperature (°C) | 18.9 | 20.3 | 21.7 | 22.8 | 22.9 | 22.2 | 22.3 | 22.5 | 22.6 | 20.6 | 20.6 | 18.0 |
| 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 | 11.1 | 11.3 | 10.9 | 9.6 | 10.7 | 10.4 | 10.8 | 8.8 | 10.0 | 10.5 |
| Precipitation (mm) | 2 | 0 | 41 | 39 | 72 | 239 | 143 | 182 | 145 | 265 | 149 | 6 |
| Sunny days | 24 | 27 | 19 | 15 | 7 | 1 | 5 | 4 | 3 | 0 | 8 | 22 |
| Rainy days | 7 | 1 | 12 | 15 | 24 | 29 | 26 | 27 | 27 | 31 | 22 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Altomiro is at