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September Weather in Erwinville, United States

Last updated: June 24, 2025

In September, the average temperature in Erwinville, United States reaches a warm 26°C (80°F). Expect temperatures to range from a cool 13°C (55°F) to a scorching 37°C (99°F). During this month, the area receives about 137 mm (5.4 in) of precipitation spread over 13 days, with an average humidity of 79%. Pack accordingly to enjoy all that this delightful climate has to offer!

September Temperature in Erwinville

In September in Erwinville, the average temperature is 26°C (80°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 13°C (55°F). It's an ideal time for travelers seeking warm weather but be prepared for a range of temperatures during your visit.

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

The chart illustrates September temperature patterns in Erwinville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Erwinville, September typically has an average temperature of 26°C (80°F), with highs reaching up to 37°C (99°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec535864687781828279726056
Data source: Temperature data for Erwinville 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 Erwinville

In Erwinville in September, the total precipitation amount reaches 137 mm (5.4 in) over the course of 13 days.

September Precipitation Trends in Erwinville

The chart displays monthly precipitation patterns in Erwinville, 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 Erwinville, September typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1101098015014815618614513711086111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Erwinville

In Erwinville 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 Erwinville

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

In Erwinville 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 Erwinville.

Maximum UV Index Levels in Erwinville for September

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

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

This table compares monthly weather conditions in Erwinville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)110 mm (4.3 inches)83%moderate
February Weather14°C (58°F)109 mm (4.3 inches)83%very high
March Weather18°C (65°F)80 mm (3.2 inches)80%very high
April Weather20°C (68°F)150 mm (5.9 inches)81%extreme
May Weather25°C (77°F)148 mm (5.8 inches)81%extreme
June Weather27°C (81°F)156 mm (6.1 inches)78%extreme
July Weather28°C (83°F)186 mm (7.3 inches)79%extreme
August Weather28°C (82°F)145 mm (5.7 inches)79%extreme
September Weather26°C (80°F)137 mm (5.4 inches)79%very high
October Weather22°C (73°F)110 mm (4.3 inches)77%very high
November Weather15°C (60°F)86 mm (3.4 inches)85%high
December Weather13°C (56°F)111 mm (4.4 inches)88%moderate

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