Last updated: June 24, 2025
In September, the average temperature in Akutan, United States is a cool 9°C (48°F). You'll experience a range from a brisk minimum of 6°C (43°F) to a maximum of 13°C (56°F). Be prepared for some rain, as precipitation averages 96 mm (3.8 in) over 14 days, coupled with a high average humidity of 87%.
In September in Akutan, the average temperature is 9°C (48°F), with maximums reaching 13°C (56°F) and minimums dropping to as low as 6°C (43°F). It's a cool time to visit, so be sure to pack layers for your trip.
In Akutan in September, the total precipitation amount is 96 mm (3.8 in) over the course of 14 days.
In Akutan in September humidity is 87%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and requiring extra layers and careful planning for any activities.
In Akutan in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Akutan.
UV Risk Categories
Weather in Akutan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Akutan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 84 mm (3.3 inches) | 84% | low |
| February Weather | 3°C (37°F) | 105 mm (4.1 inches) | 85% | low |
| March Weather | 2°C (35°F) | 70 mm (2.8 inches) | 85% | moderate |
| April Weather | 3°C (37°F) | 58 mm (2.3 inches) | 85% | moderate |
| May Weather | 5°C (40°F) | 69 mm (2.7 inches) | 91% | high |
| June Weather | 7°C (45°F) | 75 mm (2.9 inches) | 93% | high |
| July Weather | 9°C (48°F) | 57 mm (2.3 inches) | 94% | very high |
| August Weather | 10°C (50°F) | 75 mm (2.9 inches) | 92% | very high |
| September Weather | 9°C (48°F) | 96 mm (3.8 inches) | 87% | moderate |
| October Weather | 7°C (45°F) | 128 mm (5.1 inches) | 82% | moderate |
| November Weather | 5°C (41°F) | 102 mm (4.0 inches) | 81% | low |
| December Weather | 3°C (38°F) | 141 mm (5.5 inches) | 83% | low |