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September Weather in Chateldon, France

Last updated: August 23, 2025

In September, the average temperature in Chateldon, France is a pleasant 17°C (62°F). However, temperatures can vary significantly, with a minimum of 4°C (39°F) and reaching up to a warm 34°C (94°F). Expect about 64 mm (2.5 in) of precipitation over roughly 9 days, contributing to an average humidity of 72%, creating a refreshing ambiance throughout the month.

September Temperature in Chateldon

In September, in Chateldon, the average temperature is 17°C (62°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 4°C (39°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates September temperature patterns in Chateldon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chateldon, September typically has an average temperature of 17°C (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec374346515766696962544541
Data source: Temperature data for Chateldon 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 Chateldon

In Chateldon in September, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

September Precipitation Trends in Chateldon

The chart displays monthly precipitation patterns in Chateldon, 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 Chateldon, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec75587250100926650646976120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chateldon

In Chateldon in September humidity is 72%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls but potentially heavy on the skin, prompting travelers to seek shade during midday excursions.

September Average Humidity in Chateldon

This chart illustrates the average monthly humidity levels in Chateldon, 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 Chateldon is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%84%81%77%76%68%61%72%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chateldon

In Chateldon 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 Chateldon.

Maximum UV Index Levels in Chateldon for September

The chart shows the monthly maximum UV Index (UVI) for Chateldon 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 Chateldon typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810987532
Data source: Chateldon 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 Chateldon Compares to Other Months

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

This table compares monthly weather conditions in Chateldon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)75 mm (3.0 inches)91%low
February Weather6°C (43°F)58 mm (2.3 inches)88%moderate
March Weather8°C (46°F)72 mm (2.8 inches)84%moderate
April Weather11°C (51°F)50 mm (2.0 inches)81%high
May Weather14°C (58°F)100 mm (3.9 inches)77%very high
June Weather19°C (66°F)92 mm (3.6 inches)76%very high
July Weather21°C (70°F)65 mm (2.6 inches)68%very high
August Weather21°C (69°F)50 mm (2.0 inches)61%very high
September Weather17°C (62°F)64 mm (2.5 inches)72%high
October Weather12°C (54°F)69 mm (2.7 inches)88%moderate
November Weather7°C (45°F)76 mm (3.0 inches)91%moderate
December Weather5°C (41°F)120 mm (4.7 inches)92%low

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