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September Weather in Plaquemine, United States

Last updated: June 24, 2025

In September, the average temperature in Plaquemine, United States is a pleasant 26°C (80°F). Expect to experience a range from a cool 14°C (57°F) to a sizzling 36°C (97°F). With 142 mm (5.6 in) of precipitation spread across 14 days, you might want to keep an umbrella handy. Additionally, the average humidity sits at a warm 79%, adding to the tropical charm of the region!

September Temperature in Plaquemine

In September in Plaquemine, the average temperature is 26°C (80°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 14°C (57°F). This makes it an ideal time for travelers seeking warm weather while enjoying cool evenings.

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

The chart illustrates September temperature patterns in Plaquemine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plaquemine, September typically has an average temperature of 26°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec535965697781828279736057
Data source: Temperature data for Plaquemine 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 Plaquemine

In Plaquemine in September, the precipitation amount is 142 mm (5.6 in) occurring over a span of 14 days.

September Precipitation Trends in Plaquemine

The chart displays monthly precipitation patterns in Plaquemine, 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 Plaquemine, September typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1021147613313418419217214210873114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Plaquemine

In Plaquemine in September, humidity is 79%. With an average temperature of 26°C (80°F), this humidity feels like an enveloping warm blanket, making travel feel slightly sluggish and prompting frequent hydration breaks to stay comfortable while exploring the sights.

September Average Humidity in Plaquemine

This chart illustrates the average monthly humidity levels in Plaquemine, 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 Plaquemine is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%83%80%81%81%78%79%79%79%77%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Plaquemine

In Plaquemine 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 Plaquemine.

Maximum UV Index Levels in Plaquemine for September

The chart shows the monthly maximum UV Index (UVI) for Plaquemine 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 Plaquemine typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110965
Data source: Plaquemine 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 Plaquemine Compares to Other Months

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

This table compares monthly weather conditions in Plaquemine, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)102 mm (4.0 inches)83%moderate
February Weather15°C (59°F)114 mm (4.5 inches)83%very high
March Weather18°C (65°F)76 mm (3.0 inches)80%very high
April Weather20°C (69°F)133 mm (5.2 inches)81%extreme
May Weather25°C (77°F)134 mm (5.3 inches)81%extreme
June Weather27°C (81°F)184 mm (7.3 inches)78%extreme
July Weather28°C (83°F)192 mm (7.6 inches)79%extreme
August Weather28°C (82°F)172 mm (6.8 inches)79%extreme
September Weather26°C (80°F)142 mm (5.6 inches)79%very high
October Weather23°C (73°F)108 mm (4.3 inches)77%very high
November Weather16°C (60°F)73 mm (2.9 inches)85%high
December Weather14°C (57°F)114 mm (4.5 inches)88%moderate

Compare Plaquemine's Climate with Cities Worldwide