Last updated: March 2, 2024
The weather in Portsmouth, Dominica, during December is characterized by an average temperature of 26°C (79°F). Highs can soar to 27°C (81°F), while lows may dip to 24°C (75°F). Typically, the humidity level in Portsmouth throughout December hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Portsmouth averages 56 mm (2.2 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 11 hours 12 minutes of daylight, with the sun shining for approximately 10 hours 36 minutes each day. Additionally, there is a 66% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In December, the UV Index in Portsmouth 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 | 2 | 4 | 6 | 8 | 9 | 8 | 6 | 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 | ||||||