Last updated: March 2, 2024
The weather in Port Royal, Jamaica, during January is characterized by an average temperature of 24°C (76°F). Highs can soar to 28°C (82°F), while lows may dip to 21°C (70°F). Typically, the humidity level in Port Royal throughout January hovers around 76%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Port Royal averages 38 mm (1.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 10 minutes of daylight, with the sun shining for approximately 8 hours 3 minutes each day. Additionally, there is a 51% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In January, the UV Index in Port Royal reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 3 | 6 | 8 | 9 | 8 | 7 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||