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September Weather in Au Sable, United States

Last updated: June 24, 2025

In September, the average temperature in Au Sable, United States hovers around 17°C (63°F), with a minimum dropping to 10°C (50°F) and a pleasant maximum reaching 24°C (75°F). Expect approximately 76 mm (3.0 in) of precipitation over 11 days, contributing to an average humidity of 79%. Enjoy the mild, yet refreshing climate as you explore!

September Temperature in Au Sable

In September in Au Sable, the average temperature is 17°C (63°F). The maximum can reach 24°C (75°F), and the minimum can be as low as 10°C (50°F). This pleasant climate makes Au Sable an ideal destination for travelers seeking moderate weather and comfortable exploration.

September Weather in Au Sable: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Au Sable, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Au Sable, September typically has an average temperature of 17°C (63°F), with highs reaching up to 24°C (75°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec262630364455666863533932
Data source: Temperature data for Au Sable 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 Au Sable

In Au Sable in September, the total precipitation amount is 76 mm (3.0 in), recorded over a period of 11 days.

September Precipitation Trends in Au Sable

The chart displays monthly precipitation patterns in Au Sable, 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 Au Sable, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6267689484976864761207675
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Au Sable

In Au Sable in September, humidity is 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

September Average Humidity in Au Sable

This chart illustrates the average monthly humidity levels in Au Sable, 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 Au Sable is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%87%86%79%75%75%75%79%85%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Au Sable

In Au Sable 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 Au Sable.

Maximum UV Index Levels in Au Sable for September

The chart shows the monthly maximum UV Index (UVI) for Au Sable 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 Au Sable typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Au Sable 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 Au Sable Compares to Other Months

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

This table compares monthly weather conditions in Au Sable, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)62 mm (2.4 inches)92%low
February Weather-3°C (26°F)67 mm (2.6 inches)91%moderate
March Weather-1°C (31°F)68 mm (2.7 inches)87%moderate
April Weather2°C (37°F)94 mm (3.7 inches)85%very high
May Weather7°C (45°F)84 mm (3.3 inches)79%very high
June Weather13°C (56°F)97 mm (3.8 inches)75%very high
July Weather19°C (67°F)68 mm (2.7 inches)75%very high
August Weather20°C (69°F)64 mm (2.5 inches)75%very high
September Weather17°C (63°F)76 mm (3.0 inches)79%high
October Weather12°C (53°F)120 mm (4.7 inches)85%moderate
November Weather4°C (39°F)76 mm (3.0 inches)88%moderate
December Weather0°C (32°F)75 mm (2.9 inches)89%low

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