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September Weather in LaFayette, United States

Last updated: June 24, 2025

In September, the average temperature in LaFayette, United States is a comfortable 23°C (74°F). Visitors can expect a range from a cool 9°C (49°F) to a warm 36°C (96°F). During this month, precipitation averages 120 mm (4.7 in) over approximately 10 days, while the average humidity hovers around 64%. Plan your activities accordingly to enjoy this vibrant time of year!

September Temperature in LaFayette

In September in LaFayette, the average temperature is 23°C (74°F). Maximums can reach up to 36°C (96°F), while minimums can drop as low as 9°C (49°F). Travelers should be prepared for warm days and cooler nights.

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

The chart illustrates September temperature patterns in LaFayette, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In LaFayette, September typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (96°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec434854617075797874645046
Data source: Temperature data for LaFayette 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 LaFayette

In LaFayette in September, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.

September Precipitation Trends in LaFayette

The chart displays monthly precipitation patterns in LaFayette, 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 LaFayette, September typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec11019017316310513912515712013881150
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in LaFayette

In LaFayette in September, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

September Average Humidity in LaFayette

This chart illustrates the average monthly humidity levels in LaFayette, 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 LaFayette is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in LaFayette

In LaFayette 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 LaFayette.

Maximum UV Index Levels in LaFayette for September

The chart shows the monthly maximum UV Index (UVI) for LaFayette 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 LaFayette typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109764
Data source: LaFayette 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 LaFayette Compares to Other Months

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

This table compares monthly weather conditions in LaFayette, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)110 mm (4.3 inches)87%moderate
February Weather9°C (49°F)190 mm (7.5 inches)87%high
March Weather12°C (55°F)173 mm (6.8 inches)85%very high
April Weather16°C (61°F)163 mm (6.4 inches)82%very high
May Weather21°C (70°F)104 mm (4.1 inches)83%extreme
June Weather24°C (76°F)139 mm (5.5 inches)82%extreme
July Weather26°C (79°F)124 mm (4.9 inches)78%extreme
August Weather25°C (78°F)157 mm (6.2 inches)67%very high
September Weather23°C (74°F)120 mm (4.7 inches)64%very high
October Weather18°C (65°F)138 mm (5.4 inches)74%high
November Weather10°C (51°F)81 mm (3.2 inches)87%high
December Weather8°C (47°F)150 mm (5.9 inches)88%moderate

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