September Weather in Sioux Rapids, United States

Last updated: June 24, 2025

In September, the average temperature in Sioux Rapids, United States hovers around 19°C (66°F), offering a comfortable climate. However, be prepared for variations, as temperatures can dip to a chilly 3°C (38°F) or rise to a warm 33°C (92°F). With an average precipitation of 108 mm (4.2 in) over about 8 days, it's wise to keep an umbrella handy. Additionally, the average humidity is 75%, contributing to a slightly muggy feel. Enjoy the diverse weather this month brings!

September Temperature in Sioux Rapids

In September in Sioux Rapids, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). This variety in weather makes Sioux Rapids an ideal destination for travelers seeking both warm and cool experiences.

September Weather in Sioux Rapids: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sioux Rapids, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sioux Rapids, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec202036456073757166493627
Data source: Temperature data for Sioux Rapids 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 Sioux Rapids

In Sioux Rapids in September, the precipitation amount is 108 mm (4.2 in), which occurs over a span of 8 days.

September Precipitation Trends in Sioux Rapids

The chart displays monthly precipitation patterns in Sioux Rapids, 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 Sioux Rapids, September typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec2739709813713374105108903341
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sioux Rapids

In Sioux Rapids in September humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

September Average Humidity in Sioux Rapids

This chart illustrates the average monthly humidity levels in Sioux Rapids, 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 Sioux Rapids is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%84%75%79%74%81%82%80%75%77%85%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sioux Rapids

In Sioux Rapids 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 Sioux Rapids.

Maximum UV Index Levels in Sioux Rapids for September

The chart shows the monthly maximum UV Index (UVI) for Sioux Rapids 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 Sioux Rapids typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589111098533
Data source: Sioux Rapids 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 Sioux Rapids Compares to Other Months

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

This table compares monthly weather conditions in Sioux Rapids, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)27 mm (1.1 inches)80%moderate
February Weather-7°C (20°F)39 mm (1.5 inches)84%moderate
March Weather2°C (36°F)70 mm (2.7 inches)75%moderate
April Weather7°C (46°F)98 mm (3.9 inches)79%very high
May Weather15°C (60°F)137 mm (5.4 inches)74%very high
June Weather23°C (73°F)133 mm (5.2 inches)81%extreme
July Weather24°C (75°F)74 mm (2.9 inches)82%very high
August Weather22°C (72°F)105 mm (4.1 inches)80%very high
September Weather19°C (66°F)108 mm (4.2 inches)75%very high
October Weather9°C (49°F)90 mm (3.6 inches)77%moderate
November Weather2°C (36°F)33 mm (1.3 inches)85%moderate
December Weather-3°C (27°F)41 mm (1.6 inches)83%moderate

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