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September Weather in Alabaster, United States

Last updated: June 24, 2025

In September, the average temperature in Alabaster, United States hovers around 25°C (77°F). Expect a cool minimum of 11°C (51°F) and the potential for sweltering highs of 36°C (98°F). With 85 mm (3.3 in) of precipitation over approximately 8 days, it's a good idea to pack an umbrella. On top of that, the air carries a 73% humidity, contributing to that warm, tropical feel.

September Temperature in Alabaster

In September, in Alabaster, the average temperature is 25°C (77°F). The maximum can reach 36°C (98°F), and the minimum can be as low as 11°C (51°F). This climate makes Alabaster a great destination for travelers seeking warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Alabaster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alabaster, September typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (98°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec475358637277808077685350
Data source: Temperature data for Alabaster 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 Alabaster

In Alabaster in September, the precipitation amount is 85 mm (3.3 in) over the course of 8 days.

September Precipitation Trends in Alabaster

The chart displays monthly precipitation patterns in Alabaster, 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 Alabaster, September typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1121551341401081471231228513283142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Alabaster

In Alabaster in September humidity is 73%. With an average temperature of 25°C (77°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but also vibrant and lively, as the air carries the rich scents of the surrounding environment.

September Average Humidity in Alabaster

This chart illustrates the average monthly humidity levels in Alabaster, 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 Alabaster is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alabaster

In Alabaster in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Alabaster.

Maximum UV Index Levels in Alabaster for September

The chart shows the monthly maximum UV Index (UVI) for Alabaster 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 Alabaster typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Alabaster 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 Alabaster Compares to Other Months

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

This table compares monthly weather conditions in Alabaster, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)112 mm (4.4 inches)85%moderate
February Weather11°C (53°F)155 mm (6.1 inches)84%high
March Weather15°C (59°F)134 mm (5.3 inches)82%very high
April Weather17°C (64°F)140 mm (5.5 inches)82%very high
May Weather22°C (73°F)108 mm (4.2 inches)81%extreme
June Weather25°C (78°F)147 mm (5.8 inches)77%extreme
July Weather27°C (81°F)122 mm (4.8 inches)77%extreme
August Weather26°C (80°F)122 mm (4.8 inches)72%extreme
September Weather25°C (77°F)85 mm (3.3 inches)73%very high
October Weather20°C (68°F)132 mm (5.2 inches)73%very high
November Weather12°C (54°F)83 mm (3.3 inches)85%high
December Weather10°C (50°F)142 mm (5.6 inches)88%moderate

Compare Alabaster's Climate with Cities Worldwide