Average annual temperature is 21.6 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 11.8 °C
Number of sunny days: 58 days
Number of rainy days: 307 days
Look at detailed online map of San Rafael
* Weather data for San Rafael 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) | 30.9 | 31.6 | 31.1 | 32.6 | 32.2 | 27.3 | 29.8 | 28.6 | 29.2 | 27.7 | 28.4 | 29.2 |
| Average daytime temperature (°C) | 27.1 | 28.8 | 27.8 | 28.5 | 28.1 | 25.7 | 27.2 | 25.9 | 26.2 | 25.3 | 26.0 | 27.4 |
| Average temperature (°C) | 20.8 | 21.9 | 21.5 | 22.4 | 22.7 | 21.6 | 21.9 | 21.5 | 21.2 | 20.8 | 21.1 | 21.4 |
| Average night temperature (°C) | 16.2 | 17.3 | 16.9 | 17.7 | 18.4 | 18.3 | 18.4 | 18.2 | 17.5 | 17.8 | 17.5 | 17.1 |
| Absolute minimum temperature (°C) | 11.8 | 14.1 | 14.8 | 16.2 | 17.1 | 16.7 | 16.9 | 16.8 | 16.1 | 16.6 | 14.0 | 12.9 |
| 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 | 12.0 | 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 | 11.5 | 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) | 10.4 | 10.8 | 10.9 | 11.0 | 11.0 | 9.6 | 9.7 | 9.4 | 9.2 | 8.5 | 9.5 | 10.2 |
| Precipitation (mm) | 45 | 6 | 80 | 84 | 177 | 406 | 501 | 330 | 473 | 668 | 142 | 18 |
| Sunny days | 14 | 16 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 21 |
| Rainy days | 17 | 12 | 29 | 26 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Rafael is at