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September Weather in Unalakleet, United States

Last updated: June 24, 2025

In September, the average temperature in Unalakleet, United States hovers around 7°C (45°F). While you might experience a minimum of -5°C (23°F), the highs can reach up to 18°C (65°F). Expect about 89 mm (3.5 in) of precipitation spread over 16 days, coupled with an average humidity level of 92%. Perfect your packing to stay cozy and dry!

September Temperature in Unalakleet

In September in Unalakleet, the average temperature is 7°C (45°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as -5°C (23°F). This diverse weather makes it essential for travelers to pack layers to stay comfortable throughout the day.

September Weather in Unalakleet: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Unalakleet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unalakleet, September typically has an average temperature of 7°C (45°F), with highs reaching up to 18°C (65°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec261428445457524432138
Data source: Temperature data for Unalakleet generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Unalakleet

In Unalakleet in September, the precipitation amount is 89 mm (3.5 in) over the course of 16 days.

September Precipitation Trends in Unalakleet

The chart displays monthly precipitation patterns in Unalakleet, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Unalakleet, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec2340424358646011089594853
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Unalakleet

In Unalakleet in September, humidity is 92%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities feel heavier and less enjoyable for traveling.

September Average Humidity in Unalakleet

This chart illustrates the average monthly humidity levels in Unalakleet, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Unalakleet is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%96%90%77%78%81%86%90%92%92%99%100%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Unalakleet

In Unalakleet in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Unalakleet, you can check the information here.

Maximum UV Index Levels in Unalakleet for September

The chart shows the monthly maximum UV Index (UVI) for Unalakleet in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Unalakleet typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356653211
Data source: Unalakleet September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Unalakleet Compares to Other Months

Weather in Unalakleet varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Unalakleet, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Unalakleet, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-17°C (2°F)23 mm (0.9 inches)98%low
February Weather-14°C (7°F)40 mm (1.6 inches)96%low
March Weather-10°C (14°F)42 mm (1.7 inches)90%low
April Weather-2°C (29°F)43 mm (1.7 inches)77%moderate
May Weather7°C (44°F)58 mm (2.3 inches)78%moderate
June Weather12°C (54°F)64 mm (2.5 inches)81%high
July Weather14°C (57°F)60 mm (2.4 inches)85%high
August Weather11°C (53°F)110 mm (4.3 inches)90%moderate
September Weather7°C (45°F)89 mm (3.5 inches)92%moderate
October Weather0°C (33°F)59 mm (2.3 inches)92%low
November Weather-10°C (14°F)48 mm (1.9 inches)99%low
December Weather-13°C (8°F)53 mm (2.1 inches)100%low

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