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September Weather in Osawatomie, United States

Last updated: June 24, 2025

In September, the average temperature in Osawatomie, United States is a pleasant 22°C (73°F), with fluctuations ranging from a chilly 4°C (40°F) to a warm 34°C (93°F). Expect 80 mm (3.2 in) of precipitation spread over 7 days, contributing to an average humidity of 71%, offering a refreshing backdrop to your adventures!

September Temperature in Osawatomie

In September in Osawatomie, the average temperature is 22°C (73°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 4°C (40°F). It's advisable to pack a variety of clothing options to accommodate the warm days and cooler evenings during your trip.

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

The chart illustrates September temperature patterns in Osawatomie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osawatomie, September typically has an average temperature of 22°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec333447556677807772584539
Data source: Temperature data for Osawatomie 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 Osawatomie

In Osawatomie in September, the total precipitation amount is 80 mm (3.2 in) over the course of 7 days.

September Precipitation Trends in Osawatomie

The chart displays monthly precipitation patterns in Osawatomie, 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 Osawatomie, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec5939100101189100122116801124634
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Osawatomie

In Osawatomie in September humidity is 71%. With an average temperature of 22°C (73°F), this humidity feels like a thick, warm blanket wrapping around you, making travel feel a bit sluggish but still pleasant as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Osawatomie

This chart illustrates the average monthly humidity levels in Osawatomie, 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 Osawatomie is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Osawatomie

In Osawatomie in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Osawatomie.

Maximum UV Index Levels in Osawatomie for September

The chart shows the monthly maximum UV Index (UVI) for Osawatomie 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 Osawatomie typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101111109743
Data source: Osawatomie 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 Osawatomie Compares to Other Months

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

This table compares monthly weather conditions in Osawatomie, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)59 mm (2.3 inches)76%moderate
February Weather1°C (34°F)39 mm (1.5 inches)77%high
March Weather9°C (48°F)100 mm (3.9 inches)70%high
April Weather13°C (55°F)101 mm (4.0 inches)73%very high
May Weather19°C (66°F)189 mm (7.5 inches)82%very high
June Weather25°C (77°F)100 mm (3.9 inches)82%extreme
July Weather27°C (80°F)122 mm (4.8 inches)81%extreme
August Weather25°C (77°F)116 mm (4.6 inches)78%very high
September Weather22°C (73°F)80 mm (3.2 inches)71%very high
October Weather14°C (58°F)112 mm (4.4 inches)71%high
November Weather7°C (45°F)46 mm (1.8 inches)81%moderate
December Weather4°C (39°F)34 mm (1.3 inches)84%moderate

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