Last updated: March 2, 2024
The weather in Edinburgh of the Seven Seas, Saint Helena, Ascension and Tristan da Cunha, during December is characterized by an average temperature of 16°C (61°F). Highs can soar to 19°C (67°F), while lows may dip to 12°C (55°F). Typically, the humidity level in Edinburgh of the Seven Seas throughout December hovers around 85%.
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Average temperature
Maximum temperature
Humidity
In December, Edinburgh of the Seven Seas averages 92 mm (3.6 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 38 minutes of daylight, with the sun shining for approximately 10 hours 12 minutes each day. Additionally, there is a 18% probability of sunny days during this period.
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In December, the UV Index in Edinburgh of the Seven Seas reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 3 | 6 | 9 | 12 | 14 | 15 | 13 | 10 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||