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September Weather in De Leon, United States

Last updated: June 24, 2025

In De Leon, United States, the average temperature for September is a warm 26°C (78°F). Expect a range that can dip to a cool 8°C (47°F) at night and soar up to a scorching 38°C (100°F) during the day. With an average precipitation of 71 mm (2.8 in) spread across 8 days, you may want to plan for occasional showers. The average humidity sits at a comfortable 66%, adding to the overall pleasantness of the season.

September Temperature in De Leon

In September in De Leon, the average temperature is 26°C (78°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 8°C (47°F). It's advisable to pack for both warm days and cooler nights for a comfortable traveling experience.

September Weather in De Leon: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in De Leon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In De Leon, September typically has an average temperature of 26°C (78°F), with highs reaching up to 38°C (100°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec474960667482858578675752
Data source: Temperature data for De Leon 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 De Leon

In De Leon in September, the precipitation amount is 71 mm (2.8 in) over the course of 8 days.

September Precipitation Trends in De Leon

The chart displays monthly precipitation patterns in De Leon, 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 De Leon, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3962827511056356171873435
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in De Leon

In De Leon in September, humidity is 66%. With an average temperature of 26°C (78°F), this humidity feels like a warm, sultry embrace that can be slightly stifling for traveling, making you crave cool breezes and shaded spots to relax and rehydrate.

September Average Humidity in De Leon

This chart illustrates the average monthly humidity levels in De Leon, 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 De Leon is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in De Leon

In De Leon 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 De Leon.

Maximum UV Index Levels in De Leon for September

The chart shows the monthly maximum UV Index (UVI) for De Leon 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 De Leon typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110864
Data source: De Leon 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 De Leon Compares to Other Months

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

This table compares monthly weather conditions in De Leon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)39 mm (1.5 inches)78%moderate
February Weather9°C (49°F)62 mm (2.4 inches)78%high
March Weather16°C (61°F)82 mm (3.2 inches)77%very high
April Weather19°C (66°F)75 mm (2.9 inches)78%very high
May Weather24°C (75°F)110 mm (4.3 inches)82%extreme
June Weather28°C (82°F)56 mm (2.2 inches)78%extreme
July Weather30°C (86°F)35 mm (1.4 inches)69%extreme
August Weather29°C (85°F)61 mm (2.4 inches)63%extreme
September Weather26°C (78°F)71 mm (2.8 inches)66%very high
October Weather20°C (68°F)87 mm (3.4 inches)73%very high
November Weather14°C (57°F)34 mm (1.3 inches)84%high
December Weather11°C (52°F)35 mm (1.4 inches)87%moderate

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