Average annual temperature is 14.9 °C
Absolute maximum temperature: 24.2 °C
Absolute minimum temperature: 5.7 °C
Number of sunny days: 42 days
Number of rainy days: 323 days
Look at detailed online map of Petlac
* Weather data for Petlac 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) | 20.3 | 22.1 | 23.5 | 24.1 | 23.0 | 24.2 | 21.5 | 22.2 | 21.6 | 22.7 | 23.3 | 21.3 |
| Average daytime temperature (°C) | 17.5 | 17.8 | 19.5 | 20.9 | 21.2 | 21.5 | 19.9 | 20.3 | 20.2 | 19.4 | 18.4 | 17.5 |
| Average temperature (°C) | 12.5 | 12.9 | 14.2 | 15.0 | 15.9 | 16.3 | 15.8 | 16.0 | 15.8 | 15.7 | 14.8 | 13.5 |
| Average night temperature (°C) | 8.4 | 8.8 | 10.0 | 10.1 | 11.5 | 12.2 | 12.9 | 12.8 | 12.5 | 13.0 | 12.0 | 10.6 |
| Absolute minimum temperature (°C) | 6.1 | 7.0 | 8.1 | 7.3 | 10.1 | 10.2 | 10.9 | 10.5 | 10.5 | 11.1 | 8.3 | 5.7 |
| 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) | 9.9 | 10.0 | 10.7 | 11.5 | 11.3 | 10.8 | 10.3 | 9.9 | 10.2 | 8.7 | 7.3 | 8.8 |
| Precipitation (mm) | 60 | 120 | 147 | 51 | 128 | 112 | 287 | 322 | 159 | 293 | 336 | 135 |
| Sunny days | 5 | 6 | 3 | 8 | 4 | 3 | 0 | 1 | 1 | 0 | 5 | 6 |
| Rainy days | 26 | 22 | 28 | 22 | 27 | 27 | 31 | 30 | 29 | 31 | 25 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Petlac is at