Average annual temperature is 26.8 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 118 days
Number of rainy days: 247 days
Look at detailed online map of Port Royal
* Weather data for Port Royal Jamaica is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.2 | 30.3 | 30.1 | 31.2 | 31.9 | 32.9 | 34.3 | 34.8 | 35.0 | 34.1 | 33.0 | 31.6 |
| Average daytime temperature (°C) | 28.8 | 28.8 | 28.9 | 29.5 | 30.6 | 31.0 | 32.8 | 33.0 | 32.8 | 31.9 | 30.4 | 29.6 |
| Average temperature (°C) | 24.5 | 24.6 | 24.9 | 25.7 | 27.2 | 27.8 | 28.8 | 29.0 | 28.8 | 28.1 | 26.5 | 25.7 |
| Average night temperature (°C) | 20.7 | 20.5 | 20.8 | 21.8 | 23.8 | 24.7 | 24.6 | 25.3 | 25.0 | 24.7 | 23.1 | 22.3 |
| Absolute minimum temperature (°C) | 18.5 | 18.8 | 18.1 | 20.0 | 22.5 | 23.5 | 22.3 | 24.0 | 23.3 | 23.0 | 20.7 | 21.1 |
| 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 | 11.6 | 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 | 11.7 | 11.7 | 10.5 | 11.7 | 11.3 | 10.8 | 10.4 | 9.1 | 9.8 |
| Precipitation (mm) | 12 | 15 | 37 | 36 | 64 | 91 | 15 | 46 | 29 | 44 | 159 | 24 |
| Sunny days | 14 | 11 | 13 | 4 | 8 | 13 | 16 | 8 | 4 | 5 | 10 | 12 |
| Rainy days | 17 | 17 | 18 | 26 | 23 | 17 | 15 | 23 | 26 | 26 | 20 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Port Royal is at