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September Weather in Selawik, United States

Last updated: June 24, 2025

In September, the average temperature in Selawik, United States hovers around 7°C (45°F), with a range that can dip to a brisk -6°C (21°F) and peak at a comfortable 18°C (65°F). Expect around 55 mm (2.2 in) of precipitation spread over 12 days, contributing to an average humidity of 92%. Prepare for a cool, damp month that keeps the landscape lush and vibrant!

September Temperature in Selawik

In September in Selawik, the average temperature is 7°C (45°F), with maximums reaching 18°C (65°F) and minimums dipping as low as -6°C (21°F). This variability makes it essential for travelers to pack layers to accommodate both mild and chilly conditions.

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

The chart illustrates September temperature patterns in Selawik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Selawik, 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 -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec-6-472344576054443081
Data source: Temperature data for Selawik 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 Selawik

In Selawik in September, the total precipitation amount is 55 mm (2.2 in) over a span of 12 days.

September Precipitation Trends in Selawik

The chart displays monthly precipitation patterns in Selawik, 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 Selawik, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec162930242728586955443041
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Selawik

In Selawik 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 Selawik

This chart illustrates the average monthly humidity levels in Selawik, 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 Selawik is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%97%94%86%80%82%85%90%93%96%99%101%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Selawik

In Selawik 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 Selawik, you can check the information here.

Maximum UV Index Levels in Selawik for September

The chart shows the monthly maximum UV Index (UVI) for Selawik 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 Selawik typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112355543111
Data source: Selawik 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 Selawik Compares to Other Months

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

This table compares monthly weather conditions in Selawik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-21°C (-6°F)16 mm (0.6 inches)99%low
February Weather-20°C (-4°F)29 mm (1.1 inches)97%low
March Weather-14°C (7°F)30 mm (1.2 inches)94%low
April Weather-5°C (23°F)24 mm (0.9 inches)85%moderate
May Weather6°C (44°F)27 mm (1.1 inches)80%moderate
June Weather14°C (57°F)28 mm (1.1 inches)82%moderate
July Weather16°C (60°F)58 mm (2.3 inches)85%moderate
August Weather12°C (54°F)69 mm (2.7 inches)90%moderate
September Weather7°C (45°F)55 mm (2.2 inches)92%moderate
October Weather-1°C (30°F)44 mm (1.7 inches)96%low
November Weather-13°C (9°F)30 mm (1.2 inches)99%low
December Weather-17°C (2°F)41 mm (1.6 inches)101%low

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