nomadseason

September Weather in Sheboygan, United States

Last updated: June 24, 2025

The average temperature in Sheboygan, United States during September is a pleasant 18°C (65°F). However, temperatures can range from a crisp 6°C (43°F) to a warm 28°C (83°F). Expect 79 mm (3.1 in) of precipitation spread over 9 days, and be prepared for a fairly humid environment with an average humidity of 79%.

September Temperature in Sheboygan

In September in Sheboygan, the average temperature is 18°C (65°F). Maximums can reach 28°C (83°F), and minimums can drop as low as 6°C (43°F). This makes Sheboygan a comfortable destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Sheboygan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sheboygan, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (83°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec242333415163727164533932
Data source: Temperature data for Sheboygan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sheboygan

In Sheboygan in September, the precipitation amount is 79 mm (3.1 in) spread over 9 days.

September Precipitation Trends in Sheboygan

The chart displays monthly precipitation patterns in Sheboygan, 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 Sheboygan, September typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec49465699110989885791064549
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Sheboygan

In Sheboygan in September, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

September Average Humidity in Sheboygan

This chart illustrates the average monthly humidity levels in Sheboygan, 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 Sheboygan is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sheboygan

In Sheboygan 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 Sheboygan.

Maximum UV Index Levels in Sheboygan for September

The chart shows the monthly maximum UV Index (UVI) for Sheboygan 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 Sheboygan typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101097532
Data source: Sheboygan 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 Sheboygan Compares to Other Months

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

This table compares monthly weather conditions in Sheboygan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)48 mm (1.9 inches)85%low
February Weather-5°C (24°F)46 mm (1.8 inches)85%moderate
March Weather0°C (33°F)56 mm (2.2 inches)85%moderate
April Weather5°C (41°F)99 mm (3.9 inches)85%very high
May Weather11°C (51°F)110 mm (4.3 inches)78%very high
June Weather17°C (64°F)98 mm (3.9 inches)80%very high
July Weather22°C (72°F)98 mm (3.8 inches)78%very high
August Weather22°C (71°F)85 mm (3.3 inches)76%very high
September Weather18°C (65°F)79 mm (3.1 inches)79%high
October Weather11°C (53°F)106 mm (4.2 inches)83%moderate
November Weather4°C (39°F)45 mm (1.8 inches)88%moderate
December Weather0°C (32°F)49 mm (1.9 inches)81%low

Compare Sheboygan's Climate with Cities Worldwide