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September Weather in Sulphur Springs, United States

Last updated: June 24, 2025

In Sulphur Springs, United States, the average temperature in September hovers around 26°C (78°F). Expect a temperature range with a chilly minimum of 10°C (51°F) and a scorching maximum of 38°C (100°F). During this month, precipitation levels reach approximately 82 mm (3.2 in) over an average of 8 days, while the average humidity lingers at a comfortable 65%.

September Temperature in Sulphur Springs

In September in Sulphur Springs, the average temperature is 26°C (78°F). Maximum can reach 38°C (100°F) and minimum can be as low as 10°C (51°F). This means travelers should be prepared for both warm days and cooler evenings, making it a great time to explore outdoor activities while layering up for the night.

September Weather in Sulphur Springs: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sulphur Springs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sulphur Springs, 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 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec464859647380838378675551
Data source: Temperature data for Sulphur Springs 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 Sulphur Springs

In Sulphur Springs in September, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.

September Precipitation Trends in Sulphur Springs

The chart displays monthly precipitation patterns in Sulphur Springs, 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 Sulphur Springs, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec901381301961811007082821356399
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sulphur Springs

In Sulphur Springs in September, humidity is 65%. With an average temperature of 26°C (78°F), this humidity feels like a warm, muggy embrace that can make outdoor activities a bit challenging, often leaving travelers feeling sticky and in need of frequent breaks in the shade.

September Average Humidity in Sulphur Springs

This chart illustrates the average monthly humidity levels in Sulphur Springs, 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 Sulphur Springs 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 Sulphur Springs

In Sulphur Springs 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 Sulphur Springs.

Maximum UV Index Levels in Sulphur Springs for September

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

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

This table compares monthly weather conditions in Sulphur Springs, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)90 mm (3.5 inches)80%moderate
February Weather9°C (49°F)138 mm (5.4 inches)79%high
March Weather15°C (59°F)130 mm (5.1 inches)78%very high
April Weather18°C (64°F)196 mm (7.7 inches)78%very high
May Weather23°C (73°F)181 mm (7.1 inches)81%extreme
June Weather27°C (80°F)100 mm (3.9 inches)78%extreme
July Weather28°C (84°F)69 mm (2.7 inches)73%extreme
August Weather28°C (83°F)82 mm (3.2 inches)66%extreme
September Weather26°C (78°F)82 mm (3.2 inches)65%very high
October Weather19°C (67°F)135 mm (5.3 inches)72%very high
November Weather13°C (55°F)63 mm (2.5 inches)82%high
December Weather10°C (51°F)99 mm (3.9 inches)87%moderate

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