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September Weather in Opelika, United States

Last updated: June 24, 2025

In September, the weather in Opelika, United States is quite inviting, with an average temperature of 25°C (77°F). However, be prepared for a range, as temperatures can dip to a refreshing 12°C (54°F) or soar to a sweltering 37°C (99°F). With 102 mm (4.0 in) of precipitation spread over 8 days, you might want to carry an umbrella. The average humidity sits comfortably at 73%, adding to the overall tropical feel. 🌦️

September Temperature in Opelika

In September in Opelika, the average temperature is 25°C (77°F). Maximums can reach 37°C (99°F) and minimums can be as low as 12°C (54°F). Travelers should prepare for warm days and cooler evenings while enjoying a pleasant climate.

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

The chart illustrates September temperature patterns in Opelika, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Opelika, September typically has an average temperature of 25°C (77°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec485459647378808077685551
Data source: Temperature data for Opelika 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 Opelika

In Opelika in September, the precipitation amount is 102 mm (4.0 in) over the course of 8 days.

September Precipitation Trends in Opelika

The chart displays monthly precipitation patterns in Opelika, 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 Opelika, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec11713511112112512911113010211083147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Opelika

In Opelika 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 Opelika

This chart illustrates the average monthly humidity levels in Opelika, 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 Opelika 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 Opelika

In Opelika 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 Opelika.

Maximum UV Index Levels in Opelika for September

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

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

This table compares monthly weather conditions in Opelika, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)117 mm (4.6 inches)85%moderate
February Weather12°C (55°F)135 mm (5.3 inches)84%high
March Weather15°C (59°F)111 mm (4.4 inches)82%very high
April Weather18°C (65°F)121 mm (4.7 inches)82%very high
May Weather23°C (73°F)125 mm (4.9 inches)81%extreme
June Weather25°C (78°F)129 mm (5.1 inches)77%extreme
July Weather27°C (81°F)111 mm (4.4 inches)77%extreme
August Weather26°C (80°F)130 mm (5.1 inches)72%extreme
September Weather25°C (77°F)102 mm (4.0 inches)73%very high
October Weather20°C (69°F)110 mm (4.3 inches)73%very high
November Weather13°C (55°F)83 mm (3.3 inches)85%high
December Weather10°C (51°F)147 mm (5.8 inches)88%moderate

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