Average annual temperature is 17.9 °C
Absolute maximum temperature: 29.5 °C
Absolute minimum temperature: 4.0 °C
Number of sunny days: 86 days
Number of rainy days: 279 days
Look at detailed online map of Municipio de San Sebastián Coatán
* Weather data for Municipio de San Sebastián Coatán 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) | 23.9 | 25.4 | 27.2 | 28.1 | 29.3 | 29.5 | 25.8 | 25.9 | 25.1 | 24.2 | 23.7 | 23.9 |
| Average daytime temperature (°C) | 21.7 | 22.9 | 24.6 | 26.4 | 25.9 | 25.5 | 23.8 | 23.7 | 23.2 | 22.6 | 21.8 | 21.2 |
| Average temperature (°C) | 15.8 | 16.4 | 18.0 | 19.2 | 19.3 | 19.6 | 18.7 | 18.5 | 18.0 | 17.9 | 17.2 | 16.1 |
| Average night temperature (°C) | 10.7 | 10.6 | 12.0 | 12.7 | 13.9 | 14.6 | 14.3 | 14.0 | 13.6 | 14.3 | 13.7 | 11.9 |
| Absolute minimum temperature (°C) | 7.6 | 8.8 | 9.7 | 11.0 | 12.4 | 12.5 | 12.1 | 12.3 | 10.8 | 12.4 | 10.8 | 4.0 |
| 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 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.3 | 10.6 | 11.1 | 11.6 | 11.5 | 10.6 | 10.4 | 10.0 | 9.6 | 9.0 | 8.2 | 9.5 |
| Precipitation (mm) | 16 | 21 | 37 | 90 | 143 | 239 | 325 | 207 | 397 | 261 | 231 | 27 |
| Sunny days | 17 | 14 | 11 | 11 | 5 | 3 | 3 | 2 | 0 | 0 | 3 | 17 |
| Rainy days | 14 | 14 | 20 | 19 | 26 | 27 | 28 | 29 | 30 | 31 | 27 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Municipio de San Sebastián Coatán is at