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September Weather in Marlin, United States

Last updated: June 24, 2025

In September, the average temperature in Marlin, United States is a warm 27°C (81°F). Expect a minimum chill of 10°C (51°F) and highs reaching up to 39°C (103°F). During this month, precipitation averages around 97 mm (3.8 in) spread over 10 days, with humidity levels around 69%, making for a tropical atmosphere.

September Temperature in Marlin

In September in Marlin, the average temperature is 27°C (81°F). The maximum can reach 39°C (103°F), while the minimum can be as low as 10°C (51°F). Travelers should be prepared for hot days and cool nights, making it essential to pack layers for varying temperatures.

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

The chart illustrates September temperature patterns in Marlin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marlin, September typically has an average temperature of 27°C (81°F), with highs reaching up to 39°C (103°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec505263677682868781715954
Data source: Temperature data for Marlin 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 Marlin

In Marlin in September, the total precipitation amount is 97 mm (3.8 in) over a span of 10 days.

September Precipitation Trends in Marlin

The chart displays monthly precipitation patterns in Marlin, 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 Marlin, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec668384100185785785971085878
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Marlin

In Marlin in September, humidity is 69%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket wrapped around you, making it essential to stay hydrated and take frequent breaks during your travels.

September Average Humidity in Marlin

This chart illustrates the average monthly humidity levels in Marlin, 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 Marlin is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Marlin

In Marlin 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 Marlin.

Maximum UV Index Levels in Marlin for September

The chart shows the monthly maximum UV Index (UVI) for Marlin 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 Marlin typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579101112121110864
Data source: Marlin 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 Marlin Compares to Other Months

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

This table compares monthly weather conditions in Marlin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)66 mm (2.6 inches)79%moderate
February Weather11°C (52°F)83 mm (3.3 inches)80%high
March Weather17°C (63°F)84 mm (3.3 inches)78%very high
April Weather20°C (68°F)100 mm (3.9 inches)79%very high
May Weather24°C (76°F)185 mm (7.3 inches)81%extreme
June Weather28°C (83°F)78 mm (3.1 inches)77%extreme
July Weather30°C (87°F)57 mm (2.2 inches)71%extreme
August Weather30°C (87°F)85 mm (3.4 inches)67%extreme
September Weather27°C (81°F)97 mm (3.8 inches)69%very high
October Weather21°C (71°F)107 mm (4.2 inches)73%very high
November Weather15°C (59°F)58 mm (2.3 inches)82%high
December Weather12°C (54°F)78 mm (3.1 inches)87%moderate

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