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September Weather in Heilwood, United States

Last updated: June 24, 2025

In September, the average temperature in Heilwood, United States hovers around 18°C (65°F). You can expect a minimum of 2°C (37°F) and a maximum reaching up to 31°C (89°F). During this month, the area receives an average precipitation of 127 mm (5.0 in) over 11 days, accompanied by an average humidity of 67%.

September Temperature in Heilwood

In September in Heilwood, the average temperature is 18°C (65°F). The maximum can reach 31°C (89°F), while the minimum can be as low as 2°C (37°F). Be prepared for a wide range of temperatures when traveling to Heilwood this September.

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

The chart illustrates September temperature patterns in Heilwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heilwood, September typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (89°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339496068737165554034
Data source: Temperature data for Heilwood 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 Heilwood

In Heilwood in September, the precipitation amount is 127 mm (5.0 in), occurring over 11 days.

September Precipitation Trends in Heilwood

The chart displays monthly precipitation patterns in Heilwood, 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 Heilwood, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec921271091301511301289112711491108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Heilwood

In Heilwood in September humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.

September Average Humidity in Heilwood

This chart illustrates the average monthly humidity levels in Heilwood, 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 Heilwood is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heilwood

In Heilwood 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 Heilwood.

Maximum UV Index Levels in Heilwood for September

The chart shows the monthly maximum UV Index (UVI) for Heilwood 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 Heilwood typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Heilwood 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 Heilwood Compares to Other Months

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

This table compares monthly weather conditions in Heilwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)92 mm (3.6 inches)89%moderate
February Weather0°C (33°F)127 mm (5.0 inches)90%moderate
March Weather4°C (39°F)109 mm (4.3 inches)89%high
April Weather10°C (49°F)130 mm (5.1 inches)88%very high
May Weather16°C (60°F)151 mm (5.9 inches)80%very high
June Weather20°C (68°F)130 mm (5.1 inches)79%very high
July Weather23°C (73°F)128 mm (5.0 inches)74%very high
August Weather22°C (71°F)91 mm (3.6 inches)64%very high
September Weather18°C (65°F)127 mm (5.0 inches)67%very high
October Weather13°C (55°F)114 mm (4.5 inches)81%high
November Weather4°C (40°F)91 mm (3.6 inches)89%moderate
December Weather1°C (34°F)108 mm (4.3 inches)88%low

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