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September Weather in Demopolis, United States

Last updated: June 24, 2025

In September, the average temperature in Demopolis, United States is a pleasant 26°C (79°F). While you might experience a refreshing dip to 11°C (52°F) at night, daytime can soar to a toasty 38°C (101°F). Be prepared for some rainfall too, with an average precipitation of 77 mm (3.0 in) over 8 days. Don't forget, the air can feel quite humid, averaging around 74%. Enjoy your stay!

September Temperature in Demopolis

In September in Demopolis, the average temperature is 26°C (79°F). Maximum temperatures can reach 38°C (101°F), while the minimum can drop to as low as 11°C (52°F). This makes Demopolis an ideal destination for travelers seeking a warm climate, but be prepared for some cooler evenings.

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

The chart illustrates September temperature patterns in Demopolis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Demopolis, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec495561657480828279705552
Data source: Temperature data for Demopolis 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 Demopolis

In Demopolis in September, the precipitation amount is 77 mm (3.0 in) distributed over 8 days.

September Precipitation Trends in Demopolis

The chart displays monthly precipitation patterns in Demopolis, 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 Demopolis, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec105133132127112136981137712480136
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Demopolis

In Demopolis in September humidity is 74%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and take frequent breaks in shaded areas to fully enjoy the vibrant surroundings.

September Average Humidity in Demopolis

This chart illustrates the average monthly humidity levels in Demopolis, 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 Demopolis is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Demopolis

In Demopolis in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Demopolis.

Maximum UV Index Levels in Demopolis for September

The chart shows the monthly maximum UV Index (UVI) for Demopolis 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 Demopolis typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Demopolis 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 Demopolis Compares to Other Months

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

This table compares monthly weather conditions in Demopolis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)105 mm (4.1 inches)85%moderate
February Weather13°C (55°F)133 mm (5.3 inches)84%high
March Weather16°C (61°F)132 mm (5.2 inches)82%very high
April Weather18°C (65°F)127 mm (5.0 inches)82%very high
May Weather23°C (75°F)112 mm (4.4 inches)82%extreme
June Weather26°C (80°F)136 mm (5.4 inches)79%extreme
July Weather28°C (83°F)98 mm (3.9 inches)82%extreme
August Weather28°C (82°F)113 mm (4.5 inches)77%extreme
September Weather26°C (79°F)77 mm (3.0 inches)74%very high
October Weather21°C (70°F)124 mm (4.9 inches)73%very high
November Weather13°C (56°F)80 mm (3.2 inches)85%high
December Weather11°C (52°F)136 mm (5.4 inches)88%moderate

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