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September Weather in Harbor Beach, United States

Last updated: June 24, 2025

In September, the average temperature in Harbor Beach, United States hovers around 17°C (63°F), making it a pleasant time to visit. Expect temperatures to range from a cool 5°C (41°F) to a warm 31°C (87°F). Prepare for some moisture, as the area experiences an average precipitation of 85 mm (3.4 in) over about 10 days, with humidity levels resting at a noteworthy 80%.

September Temperature in Harbor Beach

In September in Harbor Beach, the average temperature is 17°C (63°F). Maximums can reach 31°C (87°F) and minimums can be as low as 5°C (41°F). This diverse range of temperatures makes it a perfect time for travelers to enjoy a variety of outdoor activities, from exploring the local sights to lounging comfortably in cooler evenings.

September Weather in Harbor Beach: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Harbor Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harbor Beach, September typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (87°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec252633415262707063533932
Data source: Temperature data for Harbor Beach 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 Harbor Beach

In Harbor Beach in September, the precipitation amount is 85 mm (3.4 in) over the course of 10 days.

September Precipitation Trends in Harbor Beach

The chart displays monthly precipitation patterns in Harbor Beach, 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 Harbor Beach, September typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec66686599931028986851087465
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Harbor Beach

In Harbor Beach in September humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

September Average Humidity in Harbor Beach

This chart illustrates the average monthly humidity levels in Harbor Beach, 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 Harbor Beach is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harbor Beach

In Harbor Beach 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 Harbor Beach.

Maximum UV Index Levels in Harbor Beach for September

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

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

This table compares monthly weather conditions in Harbor Beach, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)66 mm (2.6 inches)88%low
February Weather-4°C (26°F)68 mm (2.7 inches)87%moderate
March Weather0°C (33°F)65 mm (2.6 inches)85%moderate
April Weather5°C (41°F)99 mm (3.9 inches)86%very high
May Weather11°C (52°F)93 mm (3.7 inches)80%very high
June Weather17°C (63°F)102 mm (4.0 inches)80%very high
July Weather21°C (70°F)89 mm (3.5 inches)80%very high
August Weather21°C (70°F)86 mm (3.4 inches)80%very high
September Weather17°C (63°F)85 mm (3.4 inches)80%high
October Weather11°C (53°F)108 mm (4.3 inches)84%moderate
November Weather4°C (39°F)74 mm (2.9 inches)89%moderate
December Weather0°C (32°F)65 mm (2.6 inches)86%low

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