Last updated: March 2, 2024
The weather in Dutch Harbor, United States, during September is characterized by an average temperature of 9°C (48°F). Highs can soar to 12°C (55°F), while lows may dip to 5°C (42°F). Typically, the humidity level in Dutch Harbor throughout September hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Dutch Harbor averages 106 mm (4.2 inches) of rainfall, typically over the course of 18 rainy days. The month enjoys an average of 12 hours 35 minutes of daylight, with the sun shining for approximately 6 hours 14 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Dutch Harbor reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, 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 | 0 | 0 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 4 | 3 | 2 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||