Average annual temperature is 23.0 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: 11.5 °C
Number of sunny days: 56 days
Number of rainy days: 309 days
Look at detailed online map of San Marcos El Triunfo
* Weather data for San Marcos El Triunfo 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) | 28.4 | 28.5 | 31.0 | 34.8 | 33.5 | 35.5 | 30.0 | 30.6 | 29.6 | 31.5 | 27.7 | 28.1 |
| Average daytime temperature (°C) | 24.8 | 25.0 | 28.0 | 30.6 | 30.3 | 31.7 | 28.3 | 28.8 | 28.6 | 27.9 | 25.0 | 23.8 |
| Average temperature (°C) | 20.3 | 20.4 | 22.9 | 24.4 | 25.1 | 26.2 | 23.5 | 23.9 | 23.6 | 23.5 | 21.9 | 20.3 |
| Average night temperature (°C) | 16.3 | 16.5 | 18.5 | 19.0 | 20.5 | 21.8 | 20.4 | 20.4 | 20.0 | 20.6 | 19.4 | 17.6 |
| Absolute minimum temperature (°C) | 11.8 | 13.6 | 15.1 | 15.3 | 18.5 | 19.0 | 17.9 | 17.7 | 18.1 | 18.4 | 14.9 | 11.5 |
| 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 | 13.0 | 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) | 9.2 | 9.1 | 10.3 | 11.2 | 11.3 | 10.9 | 9.6 | 10.3 | 9.8 | 9.1 | 5.4 | 6.5 |
| Precipitation (mm) | 223 | 184 | 153 | 106 | 147 | 133 | 475 | 337 | 448 | 488 | 622 | 353 |
| Sunny days | 8 | 7 | 9 | 15 | 5 | 7 | 0 | 0 | 0 | 0 | 2 | 3 |
| Rainy days | 23 | 21 | 22 | 15 | 26 | 23 | 31 | 31 | 30 | 31 | 28 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Marcos El Triunfo is at