Sturgis Weather in September

What's the weather like in Sturgis (South Dakota) in September 2025?

The climate in Sturgis during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Sturgis and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 7°C (44°F) is normal.

Sturgis weather averages (imperial / metric)
Daytime temperature 22.4°C 72.2°F
Nightly temperature 6.9°C 44.3°F
Average temperature 14.6°C 58.3°F
Daily sunshine 9.3 hrs
Avg rainfall 30 mm 1.2 ins
Rainy days 8 days
Sea temperature 15.7°C 60.3°F
Humidity 55%
Windspeed 17.6kph 11 mph

On average September is the 6th wettest month of the year in Sturgis with around 30mm 1.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

September temperatures in Sturgis

Sturgis average temperature in September

September rainfall

Sturgis average rain in September

September hourly sunshine

Sturgis average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sturgis in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Sturgis weather stats

Sturgis weather statistics
Hottest month: July 29.4°C 84.9°F
Driest month: January 9mm 0.4ins
Sunniest month: August 11.1hrs
Coldest month: January 0°C 32°F
Wettest month: June 75mm 3ins
Map showing location of Sturgis (44.40971, -103.50908) Sturgis map pin © Google

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