Average annual temperature is 23.0 °C
Absolute maximum temperature: 30.5 °C
Absolute minimum temperature: 15.1 °C
Number of sunny days: 27 days
Number of rainy days: 338 days
Look at detailed online map of Río
* Weather data for Río 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) | 26.0 | 26.8 | 28.6 | 28.6 | 28.6 | 29.3 | 29.2 | 29.7 | 30.5 | 30.2 | 28.5 | 27.9 |
| Average daytime temperature (°C) | 24.7 | 24.7 | 26.1 | 26.2 | 27.4 | 28.2 | 28.2 | 28.5 | 29.3 | 28.2 | 27.0 | 25.7 |
| Average temperature (°C) | 20.6 | 20.6 | 21.2 | 21.9 | 23.6 | 24.7 | 24.6 | 24.7 | 24.9 | 24.1 | 23.4 | 21.7 |
| Average night temperature (°C) | 17.7 | 17.5 | 17.6 | 18.8 | 20.8 | 22.0 | 21.7 | 22.1 | 21.7 | 21.5 | 20.8 | 18.6 |
| Absolute minimum temperature (°C) | 15.3 | 15.3 | 15.4 | 16.2 | 19.3 | 20.4 | 20.2 | 20.7 | 20.5 | 20.1 | 19.3 | 15.1 |
| 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 | 11.1 |
| 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) | 10.1 | 10.6 | 10.8 | 11.0 | 11.3 | 11.6 | 10.3 | 10.0 | 11.1 | 9.1 | 9.2 | 9.8 |
| Precipitation (mm) | 87 | 58 | 36 | 132 | 87 | 97 | 155 | 182 | 124 | 207 | 81 | 58 |
| Sunny days | 4 | 3 | 5 | 0 | 4 | 1 | 1 | 0 | 3 | 2 | 1 | 3 |
| Rainy days | 27 | 25 | 26 | 30 | 27 | 29 | 30 | 31 | 27 | 29 | 29 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Río is at