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September Weather in Harmony, United States

Last updated: June 24, 2025

In September, the average temperature in Harmony, United States is a pleasant 18°C (64°F). During this time, temperatures can swing from a chilly 1°C (35°F) to a warm 32°C (91°F). Expect some rainfall, with 115 mm (4.5 in) of precipitation spread over 9 days. The air tends to be quite humid, with an average humidity level of 74%.

September Temperature in Harmony

In September in Harmony, the average temperature is 18°C (64°F). Maximum temperatures can reach 32°C (91°F), while minimums can drop as low as 1°C (35°F). Overall, it's a great time to visit Harmony, as you can experience a pleasant mix of warm and cooler days perfect for exploring.

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

The chart illustrates September temperature patterns in Harmony, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harmony, September typically has an average temperature of 18°C (64°F), with highs reaching up to 32°C (91°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec191935455971737064493427
Data source: Temperature data for Harmony 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 Harmony

In Harmony in September, the precipitation amount is 115 mm (4.5 in) over the course of 9 days, indicating a relatively wet period for the region.

September Precipitation Trends in Harmony

The chart displays monthly precipitation patterns in Harmony, 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 Harmony, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec374963831491311061041151295440
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Harmony

In Harmony in September humidity is 74%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but potentially uncomfortable for extended outdoor activities.

September Average Humidity in Harmony

This chart illustrates the average monthly humidity levels in Harmony, 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 Harmony is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Harmony

In Harmony 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 Harmony.

Maximum UV Index Levels in Harmony for September

The chart shows the monthly maximum UV Index (UVI) for Harmony 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 Harmony typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35589101098532
Data source: Harmony 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 Harmony Compares to Other Months

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

This table compares monthly weather conditions in Harmony, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)37 mm (1.4 inches)84%moderate
February Weather-7°C (20°F)49 mm (1.9 inches)85%moderate
March Weather1°C (35°F)63 mm (2.5 inches)84%moderate
April Weather7°C (45°F)83 mm (3.3 inches)83%very high
May Weather15°C (59°F)149 mm (5.9 inches)75%very high
June Weather21°C (71°F)131 mm (5.2 inches)79%very high
July Weather23°C (74°F)106 mm (4.2 inches)75%very high
August Weather21°C (70°F)104 mm (4.1 inches)69%very high
September Weather18°C (64°F)115 mm (4.5 inches)74%very high
October Weather9°C (49°F)129 mm (5.1 inches)79%moderate
November Weather1°C (34°F)54 mm (2.1 inches)88%moderate
December Weather-3°C (27°F)40 mm (1.6 inches)82%low

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