Average annual temperature is 18.8 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 3.7 °C
Number of sunny days: 130 days
Number of rainy days: 235 days
Look at detailed online map of San Rafael Petzal
* Weather data for San Rafael Petzal 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) | 28.1 | 29.2 | 29.9 | 30.4 | 31.5 | 30.8 | 28.2 | 28.5 | 27.4 | 26.5 | 26.1 | 27.2 |
| Average daytime temperature (°C) | 24.8 | 25.7 | 26.5 | 27.8 | 27.6 | 27.6 | 25.8 | 25.4 | 25.1 | 23.9 | 23.1 | 23.9 |
| Average temperature (°C) | 17.2 | 17.7 | 19.2 | 20.7 | 20.9 | 21.0 | 19.2 | 19.0 | 18.8 | 18.0 | 17.3 | 16.7 |
| Average night temperature (°C) | 10.7 | 11.0 | 12.7 | 13.8 | 14.6 | 15.3 | 13.9 | 14.1 | 14.2 | 13.9 | 12.8 | 10.6 |
| Absolute minimum temperature (°C) | 7.6 | 8.9 | 9.3 | 11.1 | 11.3 | 12.6 | 12.2 | 12.3 | 12.7 | 11.7 | 9.9 | 3.7 |
| 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 | 12.8 | 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) | 10.5 | 10.8 | 11.1 | 11.7 | 11.5 | 11.0 | 10.8 | 9.7 | 10.1 | 9.8 | 9.3 | 10.1 |
| Precipitation (mm) | 4 | 4 | 38 | 11 | 37 | 79 | 105 | 111 | 96 | 202 | 85 | 10 |
| Sunny days | 26 | 23 | 17 | 20 | 8 | 2 | 1 | 2 | 1 | 1 | 11 | 18 |
| Rainy days | 5 | 5 | 14 | 10 | 23 | 28 | 30 | 29 | 29 | 30 | 19 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Rafael Petzal is at