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September Weather in Osseo, United States

Last updated: June 24, 2025

In September, the average temperature in Osseo, United States hovers around 17°C (64°F). Visitors can expect a temperature range that spans from a chilly 1°C (35°F) to a warm 33°C (92°F). During this month, precipitation averages at 105 mm (4.2 in), spread over 10 days, while the air maintains an average humidity level of 80%.

September Temperature in Osseo

In September in Osseo, the average temperature is 17°C (64°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 1°C (35°F). Travelers should be prepared for both warm and chilly conditions during this time.

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

The chart illustrates September temperature patterns in Osseo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osseo, September typically has an average temperature of 17°C (64°F), with highs reaching up to 33°C (92°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec181934445970736963483425
Data source: Temperature data for Osseo 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 Osseo

In Osseo in September, the precipitation amount is 105 mm (4.2 in) over a span of 10 days.

September Precipitation Trends in Osseo

The chart displays monthly precipitation patterns in Osseo, 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 Osseo, September typically receives around 105 mm (4.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec3451571001351521161451061215449
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Osseo

In Osseo in September, humidity is 80%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket wrapping around you, making travel somewhat uncomfortable as the air feels heavy and oppressive.

September Average Humidity in Osseo

This chart illustrates the average monthly humidity levels in Osseo, 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 Osseo is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Osseo

In Osseo 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 Osseo.

Maximum UV Index Levels in Osseo for September

The chart shows the monthly maximum UV Index (UVI) for Osseo 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 Osseo typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458810997532
Data source: Osseo 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 Osseo Compares to Other Months

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

This table compares monthly weather conditions in Osseo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)34 mm (1.3 inches)88%low
February Weather-7°C (19°F)51 mm (2.0 inches)89%moderate
March Weather1°C (34°F)57 mm (2.2 inches)86%moderate
April Weather7°C (44°F)100 mm (3.9 inches)85%very high
May Weather15°C (59°F)135 mm (5.3 inches)79%very high
June Weather21°C (70°F)152 mm (6.0 inches)80%very high
July Weather23°C (73°F)116 mm (4.6 inches)80%very high
August Weather21°C (69°F)145 mm (5.7 inches)78%very high
September Weather17°C (64°F)105 mm (4.2 inches)80%high
October Weather9°C (49°F)121 mm (4.7 inches)84%moderate
November Weather1°C (34°F)54 mm (2.1 inches)89%moderate
December Weather-4°C (25°F)49 mm (1.9 inches)85%low

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