Average annual temperature is 27.1 °C
Absolute maximum temperature: 30.4 °C
Absolute minimum temperature: 20.6 °C
Number of sunny days: 76 days
Number of rainy days: 289 days
Look at detailed online map of San Isidro Barrio
* Weather data for San Isidro Barrio 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) | 26.6 | 26.1 | 26.4 | 27.5 | 28.7 | 29.3 | 29.8 | 30.2 | 30.4 | 30.0 | 29.3 | 28.4 |
| Average daytime temperature (°C) | 25.9 | 25.6 | 25.7 | 26.3 | 28.0 | 28.9 | 29.3 | 29.5 | 29.9 | 29.2 | 28.5 | 27.2 |
| Average temperature (°C) | 25.3 | 24.9 | 25.1 | 25.6 | 27.2 | 28.2 | 28.5 | 28.6 | 29.1 | 28.3 | 27.8 | 26.5 |
| Average night temperature (°C) | 24.2 | 24.1 | 24.2 | 24.5 | 26.1 | 27.1 | 27.4 | 27.4 | 28.0 | 27.1 | 26.9 | 25.7 |
| Absolute minimum temperature (°C) | 21.9 | 22.9 | 22.4 | 20.6 | 24.4 | 25.1 | 25.9 | 26.0 | 25.9 | 23.7 | 25.2 | 23.7 |
| 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 | 10.8 | 11.0 | 11.0 | 11.3 | 11.7 | 10.7 | 10.4 | 11.2 | 9.4 | 9.7 | 10.0 |
| Precipitation (mm) | 73 | 33 | 19 | 89 | 64 | 62 | 111 | 131 | 44 | 263 | 79 | 43 |
| Sunny days | 8 | 5 | 12 | 5 | 8 | 6 | 2 | 6 | 8 | 6 | 3 | 7 |
| Rainy days | 23 | 23 | 19 | 25 | 23 | 24 | 29 | 25 | 22 | 25 | 27 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Isidro Barrio is at