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September Weather in Manson, United States

Last updated: June 24, 2025

In September, the average temperature in Manson, United States hovers around 13°C (56°F), making for a pleasantly mild climate. Be prepared for temperature fluctuations, as it can dip to a chilly 0°C (32°F) or soar up to a warm 32°C (90°F). Expect some rain, with an average precipitation of 37 mm (1.5 in) spread over 7 days, contributing to an average humidity level of 62%.

September Temperature in Manson

In September in Manson, the average temperature is 13°C (56°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 0°C (32°F). This varied climate makes Manson an ideal destination for travelers who enjoy both warm days and cool nights.

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

The chart illustrates September temperature patterns in Manson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Manson, September typically has an average temperature of 13°C (56°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec262533405158656555423427
Data source: Temperature data for Manson 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 Manson

In Manson in September, the precipitation amount is 37 mm (1.5 in) during a span of 7 days.

September Precipitation Trends in Manson

The chart displays monthly precipitation patterns in Manson, 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 Manson, September typically receives around 37 mm (1.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec11910267524224773783100120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Manson

In Manson in September, humidity is 62%. With an average temperature of 13°C (56°F), this humidity feels like a chill in the air that adds a touch of dampness to your travels, making it essential to dress in layers for comfort while exploring the sights.

September Average Humidity in Manson

This chart illustrates the average monthly humidity levels in Manson, 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 Manson is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Manson

In Manson 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 Manson.

Maximum UV Index Levels in Manson for September

The chart shows the monthly maximum UV Index (UVI) for Manson 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 Manson typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467910997532
Data source: Manson 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 Manson Compares to Other Months

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

This table compares monthly weather conditions in Manson, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)119 mm (4.7 inches)86%low
February Weather-4°C (26°F)102 mm (4.0 inches)86%moderate
March Weather1°C (33°F)67 mm (2.6 inches)87%high
April Weather4°C (40°F)52 mm (2.1 inches)84%high
May Weather10°C (51°F)42 mm (1.7 inches)81%very high
June Weather14°C (58°F)24 mm (0.9 inches)82%very high
July Weather18°C (65°F)7 mm (0.3 inches)79%very high
August Weather18°C (65°F)7 mm (0.3 inches)63%very high
September Weather13°C (56°F)37 mm (1.5 inches)62%high
October Weather6°C (42°F)83 mm (3.3 inches)83%moderate
November Weather1°C (34°F)100 mm (3.9 inches)89%moderate
December Weather-3°C (27°F)120 mm (4.7 inches)88%low

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