Average annual temperature is 23.1 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: 11.5 °C
Number of sunny days: 144 days
Number of rainy days: 221 days
Look at detailed online map of Cerro San Marcos
* Weather data for Cerro San Marcos 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) | 32.5 | 32.2 | 34.0 | 36.4 | 35.0 | 33.2 | 30.3 | 30.5 | 31.3 | 29.5 | 28.5 | 31.6 |
| Average daytime temperature (°C) | 28.4 | 29.0 | 31.3 | 32.7 | 32.1 | 30.2 | 29.0 | 29.1 | 29.6 | 27.6 | 26.4 | 27.5 |
| Average temperature (°C) | 21.6 | 21.9 | 23.8 | 24.7 | 25.1 | 24.0 | 23.5 | 23.6 | 23.4 | 22.5 | 21.7 | 21.5 |
| Average night temperature (°C) | 16.7 | 17.1 | 18.0 | 18.4 | 19.7 | 19.9 | 19.7 | 19.7 | 19.6 | 19.0 | 18.3 | 17.2 |
| Absolute minimum temperature (°C) | 12.4 | 14.8 | 16.3 | 16.6 | 18.0 | 18.9 | 18.5 | 18.6 | 18.8 | 16.9 | 15.3 | 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 | 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 | 10.6 | 11.1 | 11.3 | 11.0 | 10.5 | 10.7 | 9.8 | 10.3 | 9.6 | 9.1 | 10.1 |
| Precipitation (mm) | 3 | 1 | 11 | 13 | 88 | 155 | 137 | 145 | 248 | 207 | 105 | 1 |
| Sunny days | 24 | 25 | 20 | 15 | 11 | 2 | 5 | 1 | 1 | 3 | 11 | 26 |
| Rainy days | 7 | 3 | 11 | 15 | 20 | 28 | 26 | 30 | 29 | 28 | 19 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cerro San Marcos is at