Average annual temperature is 27.4 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 91 days
Number of rainy days: 274 days
Look at detailed online map of Sector Sís
* Weather data for Sector Sís 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) | 35.1 | 35.0 | 35.7 | 36.5 | 37.2 | 33.7 | 34.9 | 34.3 | 35.6 | 32.9 | 33.4 | 35.1 |
| Average daytime temperature (°C) | 33.1 | 33.6 | 33.6 | 34.7 | 34.3 | 31.9 | 32.9 | 32.3 | 33.4 | 31.0 | 31.6 | 33.4 |
| Average temperature (°C) | 26.5 | 27.0 | 27.5 | 28.7 | 28.8 | 27.1 | 27.6 | 27.4 | 27.6 | 26.0 | 26.8 | 27.3 |
| Average night temperature (°C) | 20.9 | 21.1 | 22.4 | 23.2 | 24.2 | 23.7 | 23.9 | 23.9 | 23.7 | 23.0 | 22.9 | 22.0 |
| Absolute minimum temperature (°C) | 19.1 | 20.1 | 21.3 | 21.7 | 22.9 | 22.7 | 22.7 | 22.4 | 22.9 | 22.1 | 21.6 | 18.9 |
| 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) | 10.6 | 10.8 | 10.9 | 11.5 | 11.1 | 10.3 | 10.0 | 9.5 | 10.1 | 8.3 | 9.7 | 10.3 |
| Precipitation (mm) | 12 | 3 | 54 | 41 | 170 | 259 | 241 | 192 | 192 | 537 | 88 | 12 |
| Sunny days | 23 | 22 | 5 | 4 | 3 | 0 | 2 | 1 | 0 | 0 | 8 | 23 |
| Rainy days | 8 | 6 | 26 | 26 | 28 | 30 | 29 | 30 | 30 | 31 | 22 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sector Sís is at