Average annual temperature is 27.1 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: 14.6 °C
Number of sunny days: 138 days
Number of rainy days: 227 days
Look at detailed online map of Usumatlán
* Weather data for Usumatlán 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) | 36.9 | 37.2 | 39.3 | 40.6 | 39.4 | 41.2 | 34.9 | 38.0 | 37.8 | 38.4 | 34.4 | 35.2 |
| Average daytime temperature (°C) | 31.6 | 32.6 | 35.8 | 36.9 | 36.6 | 36.6 | 33.6 | 34.9 | 35.4 | 34.2 | 29.8 | 30.7 |
| Average temperature (°C) | 24.8 | 25.2 | 27.8 | 28.9 | 29.1 | 29.3 | 27.2 | 28.1 | 28.4 | 27.5 | 25.0 | 24.5 |
| Average night temperature (°C) | 20.3 | 20.4 | 22.2 | 22.8 | 23.9 | 24.1 | 23.3 | 23.7 | 23.5 | 23.3 | 22.0 | 20.5 |
| Absolute minimum temperature (°C) | 14.6 | 18.1 | 20.5 | 20.7 | 22.2 | 21.5 | 22.5 | 21.7 | 22.3 | 21.1 | 20.2 | 15.3 |
| 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 | 13.0 | 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 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 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) | 9.8 | 10.4 | 10.8 | 11.2 | 11.0 | 11.0 | 10.8 | 10.4 | 10.7 | 9.4 | 8.0 | 9.0 |
| Precipitation (mm) | 10 | 7 | 15 | 7 | 55 | 198 | 156 | 52 | 31 | 95 | 196 | 35 |
| Sunny days | 16 | 17 | 17 | 23 | 13 | 8 | 7 | 5 | 5 | 3 | 9 | 15 |
| Rainy days | 15 | 11 | 14 | 7 | 18 | 22 | 24 | 26 | 25 | 28 | 21 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Usumatlán is at