Average annual temperature is 27.3 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 21.5 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Serrano
* Weather data for Serrano 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) | 28.4 | 28.4 | 28.5 | 28.5 | 29.4 | 31.3 | 32.1 | 33.2 | 32.1 | 31.8 | 30.5 | 31.0 |
| Average daytime temperature (°C) | 27.2 | 27.2 | 26.9 | 27.3 | 28.8 | 29.7 | 30.8 | 30.8 | 30.9 | 30.2 | 29.6 | 28.7 |
| Average temperature (°C) | 25.5 | 25.4 | 25.4 | 26.0 | 27.6 | 28.6 | 28.9 | 28.9 | 28.9 | 28.1 | 27.6 | 26.4 |
| Average night temperature (°C) | 23.9 | 23.7 | 23.6 | 24.4 | 25.9 | 27.1 | 26.9 | 27.0 | 26.5 | 26.1 | 25.7 | 24.2 |
| Absolute minimum temperature (°C) | 22.9 | 22.3 | 21.5 | 22.8 | 24.2 | 24.4 | 25.2 | 25.0 | 25.3 | 25.0 | 23.8 | 21.8 |
| 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 | 11.6 | 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 | 10.8 | 11.0 | 11.4 | 11.3 | 11.7 | 11.0 | 9.9 | 11.0 | 9.7 | 9.5 | 10.2 |
| Precipitation (mm) | 13 | 5 | 8 | 20 | 81 | 68 | 89 | 112 | 73 | 214 | 76 | 10 |
| Sunny days | 15 | 19 | 18 | 15 | 7 | 8 | 12 | 5 | 3 | 6 | 8 | 13 |
| Rainy days | 16 | 9 | 13 | 15 | 24 | 22 | 19 | 26 | 27 | 25 | 22 | 18 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Serrano is at