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September Weather in Omro, United States

Last updated: June 24, 2025

In Omro, United States, the average temperature in September hovers around 18°C (64°F). Expect a comfortable range where the minimum can dip to 3°C (38°F) and the maximum can reach up to 32°C (90°F). During this month, precipitation averages 83 mm (3.3 in) over 11 days, coupled with an average humidity of 79%. It's a month where mild weather meets occasional showers, making it a great time to explore!

September Temperature in Omro

In September in Omro, the average temperature is 18°C (64°F), with maximums reaching up to 32°C (90°F) and minimums dipping down to 3°C (38°F). This wide temperature range makes it advisable for travelers to pack for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Omro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omro, September typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec202033445870747164513627
Data source: Temperature data for Omro 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 Omro

In Omro in September, the precipitation amount is 83 mm (3.3 in) over the course of 11 days.

September Precipitation Trends in Omro

The chart displays monthly precipitation patterns in Omro, 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 Omro, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec4348609510710411210483984749
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Omro

In Omro in September, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.

September Average Humidity in Omro

This chart illustrates the average monthly humidity levels in Omro, 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 Omro is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Omro

In Omro 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 Omro.

Maximum UV Index Levels in Omro for September

The chart shows the monthly maximum UV Index (UVI) for Omro 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 Omro typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Omro 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 Omro Compares to Other Months

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

This table compares monthly weather conditions in Omro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)43 mm (1.7 inches)85%moderate
February Weather-6°C (21°F)48 mm (1.9 inches)85%moderate
March Weather1°C (33°F)60 mm (2.4 inches)85%moderate
April Weather6°C (44°F)95 mm (3.8 inches)85%very high
May Weather14°C (58°F)107 mm (4.2 inches)78%very high
June Weather21°C (70°F)104 mm (4.1 inches)80%very high
July Weather23°C (74°F)112 mm (4.4 inches)78%very high
August Weather22°C (71°F)104 mm (4.1 inches)76%very high
September Weather18°C (64°F)83 mm (3.3 inches)79%high
October Weather10°C (51°F)98 mm (3.9 inches)83%moderate
November Weather2°C (36°F)47 mm (1.9 inches)88%moderate
December Weather-3°C (28°F)49 mm (1.9 inches)81%low

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