Average annual temperature is 26.7 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 48 days
Number of rainy days: 317 days
Look at detailed online map of Martonnel
* Weather data for Martonnel 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) | 29.4 | 29.1 | 32.2 | 31.0 | 33.9 | 35.7 | 33.9 | 35.1 | 34.3 | 34.1 | 32.3 | 31.3 |
| Average daytime temperature (°C) | 27.5 | 27.5 | 28.7 | 29.1 | 32.1 | 33.4 | 31.4 | 31.9 | 32.3 | 31.6 | 30.1 | 28.5 |
| Average temperature (°C) | 23.9 | 24.1 | 24.7 | 25.2 | 27.4 | 29.0 | 28.4 | 28.4 | 28.5 | 27.6 | 27.0 | 25.5 |
| Average night temperature (°C) | 21.0 | 21.3 | 21.2 | 21.8 | 23.7 | 25.5 | 25.8 | 25.7 | 25.2 | 24.8 | 24.5 | 22.9 |
| Absolute minimum temperature (°C) | 19.5 | 19.2 | 18.4 | 19.3 | 22.7 | 23.8 | 23.1 | 23.9 | 23.4 | 23.5 | 22.8 | 19.8 |
| 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) | 10.0 | 10.7 | 11.0 | 11.1 | 11.4 | 11.8 | 11.0 | 10.4 | 10.9 | 9.5 | 9.1 | 10.0 |
| Precipitation (mm) | 83 | 55 | 22 | 103 | 88 | 68 | 102 | 138 | 91 | 117 | 91 | 66 |
| Sunny days | 4 | 8 | 9 | 2 | 6 | 8 | 1 | 1 | 1 | 2 | 3 | 3 |
| Rainy days | 27 | 20 | 22 | 28 | 25 | 22 | 30 | 30 | 29 | 29 | 27 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Martonnel is at