September Weather in Big Sandy, United States

Last updated: June 24, 2025

In Big Sandy, United States, the average temperature in September hovers around 15°C (59°F). Expect a range from a chilly -1°C (30°F) to a warm 34°C (94°F). During this month, anticipate 31 mm (1.2 in) of precipitation spread over about 6 days. With an average humidity of 66%, be prepared for a mix of cool and comfortable days!

September Temperature in Big Sandy

In September in Big Sandy, the average temperature is 15°C (59°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as -1°C (30°F). This climate makes Big Sandy a versatile destination for travelers, offering both warm days and cooler nights to enjoy different experiences.

September Weather in Big Sandy: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Big Sandy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Big Sandy, September typically has an average temperature of 15°C (59°F), with highs reaching up to 34°C (94°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec231732425464736959433425
Data source: Temperature data for Big Sandy 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 Big Sandy

In Big Sandy in September, the precipitation amount is 31 mm (1.2 in) over a span of 6 days.

September Precipitation Trends in Big Sandy

The chart displays monthly precipitation patterns in Big Sandy, 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 Big Sandy, September typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec153521375756102331313522
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Big Sandy

In Big Sandy in September humidity is 66%. With an average temperature of 15°C (59°F), this humidity feels like a thick blanket wrapping around you, making traveling somewhat uncomfortable as the warmth can easily sap your energy and leave you longing for refreshing cool breezes.

September Average Humidity in Big Sandy

This chart illustrates the average monthly humidity levels in Big Sandy, 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 Big Sandy is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%83%76%73%75%75%70%67%72%82%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Big Sandy

In Big Sandy in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Big Sandy.

Maximum UV Index Levels in Big Sandy for September

The chart shows the monthly maximum UV Index (UVI) for Big Sandy 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 Big Sandy typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997532
Data source: Big Sandy 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 Big Sandy Compares to Other Months

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

This table compares monthly weather conditions in Big Sandy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)15 mm (0.6 inches)86%low
February Weather-9°C (17°F)35 mm (1.4 inches)89%moderate
March Weather0°C (32°F)21 mm (0.8 inches)83%moderate
April Weather5°C (42°F)37 mm (1.5 inches)75%high
May Weather12°C (55°F)57 mm (2.3 inches)72%very high
June Weather18°C (65°F)56 mm (2.2 inches)75%very high
July Weather23°C (73°F)9 mm (0.4 inches)75%very high
August Weather21°C (70°F)23 mm (0.9 inches)69%very high
September Weather15°C (59°F)31 mm (1.2 inches)66%high
October Weather6°C (43°F)31 mm (1.2 inches)72%moderate
November Weather1°C (34°F)34 mm (1.4 inches)82%moderate
December Weather-4°C (26°F)22 mm (0.8 inches)89%low

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