Average annual temperature is 26.1 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 75 days
Number of rainy days: 290 days
Look at detailed online map of Mariani
* Weather data for Mariani Puerto Rico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.1 | 31.0 | 31.0 | 30.3 | 31.0 | 33.2 | 33.0 | 33.7 | 32.2 | 31.9 | 30.2 | 31.0 |
| Average daytime temperature (°C) | 28.0 | 29.0 | 28.9 | 28.7 | 29.8 | 30.3 | 31.2 | 30.8 | 31.1 | 29.8 | 28.9 | 28.7 |
| Average temperature (°C) | 24.0 | 24.5 | 24.7 | 25.1 | 26.6 | 27.4 | 27.9 | 27.7 | 27.6 | 26.6 | 26.0 | 24.9 |
| Average night temperature (°C) | 21.0 | 21.0 | 20.9 | 21.9 | 23.9 | 24.9 | 25.2 | 25.2 | 24.6 | 24.3 | 23.7 | 21.9 |
| Absolute minimum temperature (°C) | 19.4 | 18.5 | 18.3 | 20.0 | 22.7 | 22.5 | 23.6 | 23.5 | 23.3 | 22.7 | 21.0 | 19.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| 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) | 10.4 | 10.7 | 11.0 | 11.3 | 11.2 | 11.6 | 10.9 | 9.8 | 10.9 | 9.6 | 9.3 | 10.0 |
| Precipitation (mm) | 26 | 13 | 14 | 70 | 71 | 94 | 82 | 112 | 68 | 204 | 75 | 28 |
| Sunny days | 14 | 14 | 15 | 1 | 3 | 2 | 7 | 2 | 2 | 1 | 6 | 8 |
| Rainy days | 17 | 14 | 16 | 29 | 28 | 28 | 24 | 29 | 28 | 30 | 24 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mariani is at