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September Weather in Montgomery, United States

Last updated: June 24, 2025

In September, the average temperature in Montgomery, United States hovers around 18°C (65°F). Expect some variability, with lows dipping to 2°C (35°F) and highs soaring up to 33°C (91°F). During this month, you'll experience approximately 130 mm (5.1 in) of precipitation spread over 10 days, coupled with an average humidity of 81%. 🌧️

September Temperature in Montgomery

In September in Montgomery, the average temperature is 18°C (65°F). The maximum can reach 33°C (91°F), while the minimum can be as low as 2°C (35°F). Pack accordingly for a varied climate to fully enjoy your trip to Montgomery.

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

The chart illustrates September temperature patterns in Montgomery, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montgomery, September typically has an average temperature of 18°C (65°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec171733435971747064483424
Data source: Temperature data for Montgomery 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 Montgomery

In Montgomery in September, the precipitation amount is 130 mm (5.1 in) over a period of 10 days.

September Precipitation Trends in Montgomery

The chart displays monthly precipitation patterns in Montgomery, 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 Montgomery, September typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec33366486135101108135130883547
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montgomery

In Montgomery in September, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

September Average Humidity in Montgomery

This chart illustrates the average monthly humidity levels in Montgomery, 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 Montgomery is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Montgomery

In Montgomery 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 Montgomery.

Maximum UV Index Levels in Montgomery for September

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

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

This table compares monthly weather conditions in Montgomery, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)33 mm (1.3 inches)87%moderate
February Weather-9°C (17°F)36 mm (1.4 inches)90%moderate
March Weather1°C (33°F)64 mm (2.5 inches)85%moderate
April Weather6°C (44°F)86 mm (3.4 inches)84%very high
May Weather15°C (59°F)135 mm (5.3 inches)78%very high
June Weather22°C (72°F)101 mm (4.0 inches)80%very high
July Weather23°C (74°F)108 mm (4.3 inches)81%very high
August Weather21°C (71°F)135 mm (5.3 inches)81%very high
September Weather18°C (65°F)130 mm (5.1 inches)81%very high
October Weather9°C (49°F)88 mm (3.5 inches)84%moderate
November Weather1°C (34°F)35 mm (1.4 inches)88%moderate
December Weather-4°C (24°F)47 mm (1.8 inches)84%low

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