Last updated: March 2, 2024
The weather in Hellissandur, Iceland, during September is characterized by an average temperature of 9°C (48°F). Highs can soar to 12°C (54°F), while lows may dip to 4°C (39°F). Typically, the humidity level in Hellissandur throughout September hovers around 89%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Hellissandur averages 149 mm (5.9 inches) of rainfall, typically over the course of 20 rainy days. The month enjoys an average of 12 hours 57 minutes of daylight, with the sun shining for approximately 5 hours 55 minutes each day. Additionally, there is a 14% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Hellissandur 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 | ||||||||||