Average annual temperature is 14.0 °C
Absolute maximum temperature: 24.8 °C
Absolute minimum temperature: 1.6 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of Sumal
* Weather data for Sumal 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) | 20.8 | 23.3 | 24.8 | 24.7 | 24.4 | 23.9 | 21.0 | 22.9 | 21.3 | 22.8 | 23.3 | 21.5 |
| Average daytime temperature (°C) | 17.6 | 18.0 | 19.9 | 21.4 | 21.6 | 21.6 | 19.6 | 19.9 | 19.9 | 18.9 | 17.7 | 16.7 |
| Average temperature (°C) | 11.7 | 12.1 | 13.6 | 14.6 | 15.4 | 15.8 | 14.7 | 14.9 | 14.7 | 14.4 | 13.6 | 12.2 |
| Average night temperature (°C) | 6.9 | 7.5 | 8.6 | 9.1 | 10.4 | 11.3 | 11.0 | 11.2 | 10.6 | 11.2 | 10.5 | 8.9 |
| Absolute minimum temperature (°C) | 3.4 | 4.9 | 5.3 | 6.0 | 8.7 | 9.1 | 8.5 | 8.2 | 9.1 | 9.3 | 7.1 | 1.6 |
| 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 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.2 |
| 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) | 10.0 | 10.2 | 10.8 | 11.5 | 11.3 | 11.1 | 10.6 | 10.0 | 10.7 | 9.0 | 7.6 | 9.0 |
| Precipitation (mm) | 52 | 85 | 125 | 47 | 134 | 153 | 299 | 295 | 220 | 203 | 305 | 90 |
| Sunny days | 6 | 4 | 6 | 6 | 4 | 4 | 0 | 2 | 0 | 0 | 4 | 3 |
| Rainy days | 25 | 24 | 25 | 24 | 27 | 26 | 31 | 29 | 30 | 31 | 26 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sumal is at