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September Weather in Fennville, United States

Last updated: June 24, 2025

In September, the average temperature in Fennville, United States hovers around 19°C (66°F), offering a comfortable climate for various activities. However, be prepared for fluctuating conditions, with minimums dropping to 4°C (40°F) and highs peaking at 33°C (91°F). Expect some rain, with an average precipitation of 89 mm (3.5 in) over approximately 10 days, and humidity levels can reach a notable 79%. Plan accordingly to make the most of your visit!

September Temperature in Fennville

In September in Fennville, the average temperature is 19°C (66°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 4°C (40°F). This makes the weather in Fennville during September ideal for travelers seeking a mix of warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Fennville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fennville, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec282837455868737266544034
Data source: Temperature data for Fennville 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 Fennville

In Fennville in September, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.

September Precipitation Trends in Fennville

The chart displays monthly precipitation patterns in Fennville, 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 Fennville, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec757779971501299072891477472
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fennville

In Fennville in September humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.

September Average Humidity in Fennville

This chart illustrates the average monthly humidity levels in Fennville, 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 Fennville is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%87%82%81%78%79%80%82%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fennville

In Fennville 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 Fennville.

Maximum UV Index Levels in Fennville for September

The chart shows the monthly maximum UV Index (UVI) for Fennville 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 Fennville typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101097532
Data source: Fennville 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 Fennville Compares to Other Months

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

This table compares monthly weather conditions in Fennville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)75 mm (3.0 inches)87%moderate
February Weather-2°C (29°F)77 mm (3.0 inches)87%moderate
March Weather3°C (37°F)78 mm (3.1 inches)86%high
April Weather7°C (45°F)97 mm (3.8 inches)87%very high
May Weather14°C (58°F)150 mm (5.9 inches)82%very high
June Weather20°C (69°F)129 mm (5.1 inches)81%very high
July Weather23°C (74°F)90 mm (3.5 inches)78%very high
August Weather22°C (72°F)71 mm (2.8 inches)79%very high
September Weather19°C (66°F)89 mm (3.5 inches)79%high
October Weather12°C (54°F)147 mm (5.8 inches)82%moderate
November Weather5°C (40°F)74 mm (2.9 inches)87%moderate
December Weather1°C (34°F)72 mm (2.8 inches)86%low

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