Average annual temperature is 26.4 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 54 days
Number of rainy days: 311 days
Look at detailed online map of Monte Carlo
* Weather data for Monte Carlo 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) | 29.7 | 29.5 | 31.2 | 31.5 | 34.3 | 35.2 | 35.3 | 36.0 | 34.8 | 34.5 | 33.3 | 32.7 |
| Average daytime temperature (°C) | 27.6 | 27.6 | 28.8 | 29.4 | 31.9 | 33.6 | 32.6 | 33.2 | 33.2 | 32.1 | 30.7 | 29.3 |
| Average temperature (°C) | 23.7 | 24.0 | 24.4 | 24.8 | 27.0 | 28.8 | 28.5 | 28.5 | 28.2 | 27.3 | 26.6 | 25.2 |
| Average night temperature (°C) | 20.7 | 21.0 | 20.7 | 21.4 | 23.1 | 25.1 | 25.3 | 25.1 | 24.2 | 23.9 | 23.7 | 22.0 |
| Absolute minimum temperature (°C) | 18.5 | 19.0 | 17.6 | 19.8 | 21.1 | 23.0 | 23.2 | 23.6 | 21.7 | 22.4 | 21.9 | 18.7 |
| 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 | 11.0 |
| 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 | 10.6 | 11.0 | 11.1 | 11.4 | 11.8 | 10.9 | 10.3 | 10.8 | 9.7 | 9.1 | 10.0 |
| Precipitation (mm) | 93 | 51 | 32 | 100 | 86 | 62 | 101 | 142 | 79 | 172 | 94 | 54 |
| Sunny days | 4 | 6 | 9 | 3 | 2 | 9 | 4 | 3 | 0 | 1 | 4 | 9 |
| Rainy days | 27 | 22 | 22 | 27 | 29 | 21 | 27 | 28 | 30 | 30 | 26 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Monte Carlo is at