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September Weather in Huntsville, Canada

Last updated: June 18, 2025

In September, the average temperature in Huntsville, Canada hovers around 15°C (59°F), with a minimum dipping to 3°C (38°F) and a maximum reaching up to 28°C (84°F). You can expect 123 mm (4.8 in) of precipitation over about 13 days, accompanied by an average humidity of 74%. Prepare for a mix of weather!

September Temperature in Huntsville

In September in Huntsville, the average temperature is 15°C (59°F). The maximum can reach 28°C (84°F) and the minimum can be as low as 3°C (38°F). It's a great time to explore Huntsville with its mild weather and pleasant conditions!

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

The chart illustrates September temperature patterns in Huntsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Huntsville, September typically has an average temperature of 15°C (59°F), with highs reaching up to 28°C (84°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec161826385160676658483323
Data source: Temperature data for Huntsville 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 Huntsville

In Huntsville in September, the precipitation amount is 123 mm (4.8 in) over the course of 13 days.

September Precipitation Trends in Huntsville

The chart displays monthly precipitation patterns in Huntsville, 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 Huntsville, September typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec71847011010012010414312311010892
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Huntsville

In Huntsville in September, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

September Average Humidity in Huntsville

This chart illustrates the average monthly humidity levels in Huntsville, 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 Huntsville is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%94%87%82%74%68%67%67%74%83%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Huntsville

In Huntsville 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 Huntsville.

Maximum UV Index Levels in Huntsville for September

The chart shows the monthly maximum UV Index (UVI) for Huntsville 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 Huntsville typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899997532
Data source: Huntsville 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 Huntsville Compares to Other Months

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

This table compares monthly weather conditions in Huntsville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)71 mm (2.8 inches)93%low
February Weather-8°C (19°F)84 mm (3.3 inches)94%moderate
March Weather-4°C (26°F)70 mm (2.8 inches)87%moderate
April Weather3°C (38°F)110 mm (4.3 inches)82%very high
May Weather10°C (51°F)100 mm (4.0 inches)74%very high
June Weather16°C (60°F)120 mm (4.7 inches)68%very high
July Weather20°C (68°F)104 mm (4.1 inches)67%very high
August Weather19°C (66°F)143 mm (5.6 inches)67%very high
September Weather15°C (59°F)123 mm (4.8 inches)74%high
October Weather9°C (48°F)110 mm (4.3 inches)83%moderate
November Weather1°C (34°F)108 mm (4.3 inches)89%moderate
December Weather-5°C (24°F)92 mm (3.6 inches)91%low

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