Average annual temperature is 13.1 °C
Absolute maximum temperature: 22.6 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 26 days
Number of rainy days: 339 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) | 19.0 | 20.9 | 21.9 | 22.5 | 21.8 | 22.6 | 20.1 | 20.8 | 20.2 | 21.4 | 21.7 | 20.0 |
| Average daytime temperature (°C) | 16.0 | 16.2 | 17.8 | 19.4 | 19.8 | 20.2 | 18.6 | 18.8 | 18.8 | 17.8 | 16.6 | 15.5 |
| Average temperature (°C) | 10.7 | 11.1 | 12.4 | 13.3 | 14.3 | 14.7 | 14.1 | 14.2 | 14.0 | 13.8 | 12.9 | 11.5 |
| Average night temperature (°C) | 6.5 | 6.9 | 8.0 | 8.2 | 9.6 | 10.6 | 10.9 | 10.9 | 10.3 | 10.9 | 10.1 | 8.5 |
| Absolute minimum temperature (°C) | 3.3 | 4.9 | 5.5 | 5.6 | 8.1 | 8.9 | 8.6 | 8.8 | 8.6 | 9.4 | 7.3 | 1.7 |
| 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 | 12.9 | 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) | 9.8 | 9.7 | 10.6 | 11.5 | 11.3 | 10.9 | 10.3 | 9.9 | 10.5 | 8.6 | 7.0 | 8.6 |
| Precipitation (mm) | 100 | 186 | 126 | 34 | 96 | 157 | 371 | 364 | 217 | 322 | 499 | 167 |
| Sunny days | 3 | 3 | 3 | 3 | 3 | 6 | 0 | 0 | 0 | 0 | 3 | 2 |
| Rainy days | 28 | 25 | 28 | 27 | 28 | 24 | 31 | 31 | 30 | 31 | 27 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sumal is at