Last updated: March 2, 2024
The weather in Hafnarfjoerdur, Iceland, during September is characterized by an average temperature of 8°C (47°F). Highs can soar to 14°C (58°F), while lows may dip to 1°C (34°F). Typically, the humidity level in Hafnarfjoerdur throughout September hovers around 87%.
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Humidity
In September, Hafnarfjoerdur averages 163 mm (6.4 inches) of rainfall, typically over the course of 22 rainy days. The month enjoys an average of 12 hours 55 minutes of daylight, with the sun shining for approximately 6 hours 52 minutes each day. Additionally, there is a 14% probability of sunny days during this period.
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In September, the UV Index in Hafnarfjoerdur reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||