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September Weather in Valliant, United States

Last updated: June 24, 2025

In September, the average temperature in Valliant, United States is a pleasant 25°C (77°F). Expect a range from a cool 10°C (50°F) to a warm 38°C (100°F). Be prepared for some rain, as the region receives about 78 mm (3.1 in) of precipitation over 7 days. With an average humidity of 65%, the weather can feel quite warm and sticky at times.

September Temperature in Valliant

In September in Valliant, the average temperature is 25°C (77°F), with maximums reaching up to 38°C (100°F) and minimums dropping as low as 10°C (50°F). It’s an ideal time to travel to Valliant if you enjoy warm weather and are prepared for some temperature variations.

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

The chart illustrates September temperature patterns in Valliant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valliant, September typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec444757627279838277655349
Data source: Temperature data for Valliant 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 Valliant

In Valliant in September, the total precipitation amount is 78 mm (3.1 in) over a duration of 7 days.

September Precipitation Trends in Valliant

The chart displays monthly precipitation patterns in Valliant, 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 Valliant, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec9414814520018510674927814771118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valliant

In Valliant in September, humidity is 65%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making outdoor activities slightly uncomfortable but still bearable, as the sticky air clings to your skin and encourages you to seek shade or a refreshing drink.

September Average Humidity in Valliant

This chart illustrates the average monthly humidity levels in Valliant, 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 Valliant 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 Valliant

In Valliant 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 Valliant.

Maximum UV Index Levels in Valliant for September

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

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

This table compares monthly weather conditions in Valliant, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)94 mm (3.7 inches)80%moderate
February Weather8°C (47°F)148 mm (5.8 inches)79%high
March Weather14°C (58°F)145 mm (5.7 inches)78%very high
April Weather17°C (62°F)200 mm (7.9 inches)78%very high
May Weather22°C (72°F)185 mm (7.3 inches)81%extreme
June Weather26°C (80°F)106 mm (4.2 inches)78%extreme
July Weather28°C (83°F)74 mm (2.9 inches)73%extreme
August Weather28°C (82°F)92 mm (3.6 inches)66%extreme
September Weather25°C (77°F)78 mm (3.1 inches)65%very high
October Weather18°C (65°F)147 mm (5.8 inches)72%very high
November Weather12°C (53°F)71 mm (2.8 inches)82%high
December Weather9°C (49°F)118 mm (4.6 inches)87%moderate

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