Average annual temperature is 12.4 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -11.0 °C
Number of sunny days: 176 days
Number of rainy days: 183 days
Number of snow days: 6 days
Look at detailed online map of Port Royal
* Weather data for Port Royal United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.9 | 20.5 | 20.9 | 30.1 | 30.7 | 34.3 | 34.8 | 33.1 | 33.2 | 28.0 | 21.0 | 15.5 |
| Average daytime temperature (°C) | 7.5 | 10.1 | 10.6 | 19.5 | 22.3 | 26.4 | 30.4 | 28.7 | 24.5 | 19.1 | 11.2 | 8.2 |
| Average temperature (°C) | 3.6 | 3.6 | 4.6 | 12.4 | 15.3 | 19.9 | 24.2 | 22.6 | 18.8 | 13.6 | 5.7 | 4.1 |
| Average night temperature (°C) | 0.6 | -1.3 | 0.0 | 6.3 | 8.2 | 13.8 | 18.5 | 17.3 | 14.0 | 9.1 | 1.2 | 1.0 |
| Absolute minimum temperature (°C) | -4.7 | -11.0 | -6.3 | -1.1 | 2.7 | 8.7 | 14.9 | 13.6 | 8.3 | 1.8 | -5.7 | -4.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 7.0 | 7.0 | 9.3 | 11.2 | 10.9 | 12.2 | 10.8 | 8.9 | 7.3 | 7.4 | 4.0 |
| Precipitation (mm) | 96 | 44 | 74 | 94 | 21 | 100 | 101 | 97 | 97 | 57 | 53 | 107 |
| Sunny days | 11 | 16 | 12 | 15 | 19 | 13 | 10 | 9 | 16 | 19 | 20 | 16 |
| Rainy days | 19 | 10 | 18 | 15 | 12 | 17 | 21 | 22 | 14 | 12 | 9 | 14 |
| Snow days | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Port Royal during the most sunny months:
The largest precipitation sum in Port Royal is at