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September Weather in Chalais, France

Last updated: August 23, 2025

In September, the average temperature in Chalais, France hovers around 19°C (66°F). Expect swings in temperature, with a minimum dipping to 6°C (42°F) and a maximum climbing to a sizzling 35°C (95°F). The region experiences an average precipitation of 49 mm (1.9 in) spread over 7 days, all while maintaining a humidity level of about 79%.

September Temperature in Chalais

In September in Chalais, the average temperature is 19°C (66°F). Maximums can reach 35°C (95°F), while minimums can drop as low as 6°C (42°F). This diverse temperature range makes Chalais a great destination for travelers who enjoy varying weather conditions.

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

The chart illustrates September temperature patterns in Chalais, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chalais, September typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec424750556168727166584845
Data source: Temperature data for Chalais 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 Chalais

In Chalais in September, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.

September Precipitation Trends in Chalais

The chart displays monthly precipitation patterns in Chalais, 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 Chalais, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec63698458105944844497976117
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chalais

In Chalais in September humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.

September Average Humidity in Chalais

This chart illustrates the average monthly humidity levels in Chalais, 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 Chalais is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%84%84%82%79%75%79%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chalais

In Chalais 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 Chalais.

Maximum UV Index Levels in Chalais for September

The chart shows the monthly maximum UV Index (UVI) for Chalais 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 Chalais typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810997532
Data source: Chalais 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 Chalais Compares to Other Months

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

This table compares monthly weather conditions in Chalais, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)63 mm (2.5 inches)90%low
February Weather8°C (47°F)68 mm (2.7 inches)87%moderate
March Weather10°C (50°F)84 mm (3.3 inches)85%moderate
April Weather13°C (56°F)58 mm (2.3 inches)84%high
May Weather16°C (61°F)105 mm (4.1 inches)84%very high
June Weather20°C (68°F)94 mm (3.7 inches)82%very high
July Weather22°C (72°F)48 mm (1.9 inches)79%very high
August Weather21°C (71°F)44 mm (1.7 inches)75%very high
September Weather19°C (66°F)49 mm (1.9 inches)79%high
October Weather14°C (58°F)79 mm (3.1 inches)86%moderate
November Weather9°C (49°F)76 mm (3.0 inches)90%moderate
December Weather7°C (46°F)117 mm (4.6 inches)92%low

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