Average annual temperature is 25.6 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 64 days
Number of rainy days: 301 days
Look at detailed online map of Dartmouth
* Weather data for Dartmouth 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) | 31.4 | 31.5 | 34.8 | 37.4 | 35.7 | 37.6 | 33.2 | 33.4 | 32.4 | 35.2 | 31.2 | 31.2 |
| Average daytime temperature (°C) | 27.6 | 28.0 | 30.9 | 33.0 | 33.2 | 34.1 | 30.8 | 31.4 | 31.3 | 30.4 | 27.7 | 26.7 |
| Average temperature (°C) | 23.0 | 23.3 | 25.3 | 26.5 | 27.6 | 28.6 | 26.2 | 26.5 | 26.3 | 25.8 | 24.3 | 23.2 |
| Average night temperature (°C) | 20.0 | 20.2 | 21.4 | 22.0 | 23.6 | 24.4 | 23.2 | 23.5 | 23.1 | 22.6 | 22.1 | 20.8 |
| Absolute minimum temperature (°C) | 15.2 | 17.8 | 19.5 | 19.1 | 22.4 | 22.7 | 22.2 | 22.1 | 21.6 | 20.2 | 18.8 | 15.0 |
| 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 | 12.8 | 13.0 | 12.9 | 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) | 8.6 | 9.2 | 10.7 | 11.3 | 10.8 | 10.8 | 8.9 | 9.4 | 10.0 | 8.9 | 7.0 | 6.9 |
| Precipitation (mm) | 148 | 88 | 110 | 72 | 68 | 138 | 293 | 249 | 180 | 221 | 713 | 212 |
| Sunny days | 8 | 7 | 11 | 14 | 8 | 7 | 0 | 0 | 0 | 3 | 3 | 3 |
| Rainy days | 23 | 21 | 20 | 16 | 23 | 23 | 31 | 31 | 30 | 28 | 27 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dartmouth is at