Average annual temperature is 25.0 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: 13.9 °C
Number of sunny days: 95 days
Number of rainy days: 270 days
Look at detailed online map of Grand Mat
* Weather data for Grand Mat Haiti is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.3 | 30.3 | 31.2 | 31.7 | 33.7 | 34.2 | 35.6 | 34.4 | 33.8 | 32.9 | 32.7 | 31.9 |
| Average daytime temperature (°C) | 27.8 | 28.8 | 29.2 | 29.2 | 31.4 | 32.3 | 33.1 | 31.9 | 32.5 | 31.3 | 30.3 | 29.4 |
| Average temperature (°C) | 22.0 | 22.8 | 23.4 | 23.9 | 25.9 | 27.0 | 27.3 | 26.5 | 26.8 | 25.9 | 24.7 | 23.8 |
| Average night temperature (°C) | 16.7 | 17.1 | 18.1 | 19.3 | 21.4 | 22.3 | 22.1 | 22.0 | 21.8 | 21.3 | 19.8 | 19.0 |
| Absolute minimum temperature (°C) | 13.9 | 16.0 | 16.3 | 17.1 | 19.8 | 21.0 | 20.3 | 20.1 | 20.6 | 19.7 | 17.5 | 15.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.1 | 10.6 | 11.2 | 11.7 | 11.5 | 11.0 | 11.5 | 11.0 | 11.1 | 10.4 | 9.8 | 9.9 |
| Precipitation (mm) | 18 | 19 | 25 | 72 | 120 | 78 | 65 | 137 | 86 | 119 | 97 | 19 |
| Sunny days | 15 | 11 | 11 | 0 | 2 | 8 | 10 | 5 | 3 | 1 | 11 | 18 |
| Rainy days | 16 | 17 | 20 | 30 | 29 | 22 | 21 | 26 | 27 | 30 | 19 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Grand Mat is at