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September Weather in Nashwauk, United States

Last updated: June 24, 2025

In September, the average temperature in Nashwauk, United States hovers around 14°C (58°F). Expect a temperature range that dips to a minimum of -1°C (30°F) and peaks at a warm 29°C (85°F). With 112 mm (4.4 in) of precipitation over approximately 13 days, it's advisable to be prepared for some rain. The atmosphere can feel quite humid, with an average humidity level of 77%.

September Temperature in Nashwauk

In September in Nashwauk, the average temperature is 14°C (58°F). Maximums can reach 29°C (85°F) and minimums can be as low as -1°C (30°F). Travelers should be prepared for a wide range of temperatures, making layered clothing advisable for comfort throughout the day.

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

The chart illustrates September temperature patterns in Nashwauk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nashwauk, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (85°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec9927375465696658432716
Data source: Temperature data for Nashwauk 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 Nashwauk

In Nashwauk in September, the precipitation amount is 112 mm (4.4 in) over the course of 13 days.

September Precipitation Trends in Nashwauk

The chart displays monthly precipitation patterns in Nashwauk, 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 Nashwauk, September typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec22273359619210281112973552
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nashwauk

In Nashwauk in September, humidity is 77%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making traveling feel sticky and heavy, yet still manageable as you explore the sights.

September Average Humidity in Nashwauk

This chart illustrates the average monthly humidity levels in Nashwauk, 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 Nashwauk is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%88%83%76%76%76%77%77%82%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nashwauk

In Nashwauk in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Nashwauk.

Maximum UV Index Levels in Nashwauk for September

The chart shows the monthly maximum UV Index (UVI) for Nashwauk 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 Nashwauk typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Nashwauk 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 Nashwauk Compares to Other Months

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

This table compares monthly weather conditions in Nashwauk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-13°C (10°F)22 mm (0.9 inches)92%low
February Weather-13°C (10°F)27 mm (1.1 inches)93%moderate
March Weather-3°C (27°F)33 mm (1.3 inches)88%moderate
April Weather3°C (38°F)59 mm (2.3 inches)83%high
May Weather12°C (54°F)61 mm (2.4 inches)76%very high
June Weather18°C (65°F)92 mm (3.6 inches)76%very high
July Weather21°C (69°F)102 mm (4.0 inches)76%very high
August Weather19°C (66°F)81 mm (3.2 inches)77%very high
September Weather14°C (58°F)112 mm (4.4 inches)77%high
October Weather6°C (43°F)97 mm (3.8 inches)82%moderate
November Weather-3°C (27°F)35 mm (1.4 inches)87%moderate
December Weather-9°C (17°F)52 mm (2.0 inches)89%low

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