Average annual temperature is 25.2 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: 12.1 °C
Number of sunny days: 69 days
Number of rainy days: 296 days
Look at detailed online map of San Rafael Amatitlán
* Weather data for San Rafael Amatitlán 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) | 31.2 | 31.3 | 33.9 | 38.6 | 37.2 | 39.5 | 33.6 | 34.1 | 32.5 | 34.4 | 30.7 | 31.5 |
| Average daytime temperature (°C) | 27.7 | 28.2 | 31.4 | 34.3 | 34.5 | 35.5 | 31.3 | 31.2 | 31.0 | 30.3 | 27.5 | 26.0 |
| Average temperature (°C) | 22.3 | 22.7 | 25.1 | 27.0 | 27.7 | 29.0 | 25.8 | 26.0 | 25.5 | 25.4 | 23.7 | 22.2 |
| Average night temperature (°C) | 18.4 | 18.8 | 20.1 | 21.3 | 22.7 | 24.0 | 22.4 | 22.5 | 22.3 | 22.2 | 21.3 | 19.7 |
| Absolute minimum temperature (°C) | 12.7 | 16.8 | 18.1 | 18.9 | 21.1 | 22.2 | 20.9 | 21.3 | 21.1 | 19.5 | 18.9 | 12.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.2 | 9.6 | 10.8 | 11.4 | 11.4 | 10.9 | 9.0 | 9.7 | 9.5 | 9.4 | 7.0 | 7.1 |
| Precipitation (mm) | 89 | 88 | 53 | 28 | 85 | 117 | 257 | 189 | 307 | 240 | 367 | 182 |
| Sunny days | 9 | 5 | 12 | 14 | 11 | 8 | 0 | 0 | 0 | 2 | 3 | 5 |
| Rainy days | 22 | 23 | 19 | 16 | 20 | 22 | 31 | 31 | 30 | 29 | 27 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Rafael Amatitlán is at