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September Weather in Little Elm, United States

Last updated: June 24, 2025

In September, the average temperature in Little Elm, United States hovers around 26°C (79°F), with a minimum dipping to 10°C (50°F) and a maximum soaring to 37°C (99°F). Expect about 108 mm (4.3 in) of precipitation over approximately 7 days, accompanied by an average humidity level of 65%. Embrace the climate and plan your activities accordingly!

September Temperature in Little Elm

In September in Little Elm, the average temperature is 26°C (79°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 10°C (50°F). It's advisable to pack a mix of light clothing for the daytime and warmer layers for the cooler evenings.

September Weather in Little Elm: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Little Elm, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Little Elm, September typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec464859647481858479675550
Data source: Temperature data for Little Elm 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 Little Elm

In Little Elm in September, the total precipitation amount is 108 mm (4.3 in) over the course of 7 days.

September Precipitation Trends in Little Elm

The chart displays monthly precipitation patterns in Little Elm, 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 Little Elm, September typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec57891181091559245941081415457
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Little Elm

In Little Elm in September, humidity is 65%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making travel quite sticky and uncomfortable.

September Average Humidity in Little Elm

This chart illustrates the average monthly humidity levels in Little Elm, 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 Little Elm is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Little Elm

In Little Elm 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 Little Elm.

Maximum UV Index Levels in Little Elm for September

The chart shows the monthly maximum UV Index (UVI) for Little Elm 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 Little Elm typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Little Elm 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 Little Elm Compares to Other Months

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

This table compares monthly weather conditions in Little Elm, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)57 mm (2.2 inches)80%moderate
February Weather9°C (48°F)89 mm (3.5 inches)79%high
March Weather15°C (59°F)118 mm (4.7 inches)78%very high
April Weather18°C (64°F)109 mm (4.3 inches)78%very high
May Weather23°C (74°F)155 mm (6.1 inches)81%extreme
June Weather27°C (81°F)92 mm (3.6 inches)78%extreme
July Weather29°C (85°F)45 mm (1.8 inches)73%extreme
August Weather29°C (84°F)94 mm (3.7 inches)66%extreme
September Weather26°C (79°F)108 mm (4.3 inches)65%very high
October Weather19°C (67°F)141 mm (5.5 inches)72%very high
November Weather13°C (56°F)54 mm (2.1 inches)82%high
December Weather10°C (51°F)57 mm (2.3 inches)87%moderate

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