September Weather in Sturgis, United States

Last updated: June 24, 2025

In September, the average temperature in Sturgis, United States hovers around 19°C (67°F), offering a delightful climate for visitors. However, temperatures can vary significantly, with minimums dipping to 3°C (38°F) and maximums soaring to 33°C (91°F). Expect 77 mm (3.0 in) of precipitation spread over 8 days, accompanied by an average humidity of 78%, making for a refreshingly mild atmosphere.

September Temperature in Sturgis

In September in Sturgis, the average temperature is 19°C (67°F). Maximums can reach 33°C (91°F), and minimums can be as low as 3°C (38°F). This makes Sturgis a great destination for travelers seeking mild weather and a chance to enjoy a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Sturgis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sturgis, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (91°F) and lows dropping to around 3°C (38°F).

Data source: Temperature data for Sturgis generated using information from the Copernicus Climate Change Service.

September Precipitation in Sturgis

In Sturgis in September, the precipitation amount is 77 mm (3.0 in) distributed over 8 days.

September Precipitation Trends in Sturgis

The chart displays monthly precipitation patterns in Sturgis, 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 Sturgis, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Sturgis

In Sturgis in September humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.

September Average Humidity in Sturgis

This chart illustrates the average monthly humidity levels in Sturgis, 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 Sturgis is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sturgis

In Sturgis in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sturgis.

Maximum UV Index Levels in Sturgis for September

The chart shows the monthly maximum UV Index (UVI) for Sturgis 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 Sturgis typically reaches 8, which falls under the very high exposure category.

Data source: Sturgis 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 Sturgis Compares to Other Months

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

This table compares monthly weather conditions in Sturgis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	71 mm (2.8 inches)	85%	moderate
February Weather	-2°C (29°F)	76 mm (3.0 inches)	85%	moderate
March Weather	4°C (39°F)	97 mm (3.8 inches)	86%	high
April Weather	9°C (48°F)	100 mm (3.9 inches)	87%	very high
May Weather	16°C (61°F)	138 mm (5.4 inches)	81%	very high
June Weather	22°C (72°F)	123 mm (4.8 inches)	82%	very high
July Weather	24°C (75°F)	122 mm (4.8 inches)	81%	very high
August Weather	22°C (72°F)	98 mm (3.9 inches)	79%	very high
September Weather	19°C (67°F)	77 mm (3.0 inches)	78%	very high
October Weather	12°C (55°F)	128 mm (5.0 inches)	81%	high
November Weather	4°C (40°F)	81 mm (3.2 inches)	89%	moderate
December Weather	1°C (34°F)	60 mm (2.4 inches)	86%	moderate