Last updated: March 2, 2024
The weather in Vestmannaeyjar, Iceland, during September is characterized by an average temperature of 10°C (50°F). Highs can soar to 14°C (57°F), while lows may dip to 4°C (39°F). Typically, the humidity level in Vestmannaeyjar throughout September hovers around 87%.
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Average temperature
Maximum temperature
Humidity
In September, Vestmannaeyjar averages 220 mm (8.7 inches) of rainfall, typically over the course of 22 rainy days. The month enjoys an average of 12 hours 54 minutes of daylight, with the sun shining for approximately 6 hours 36 minutes each day. Additionally, there is a 16% probability of sunny days during this period.
Precipitation
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Chance of sun
In September, the UV Index in Vestmannaeyjar reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 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 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||