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September Weather in Le Donjon, France

Last updated: August 23, 2025

In September, the average temperature in Le Donjon, France hovers around 17°C (63°F), offering a pleasant climate. However, be prepared for temperature fluctuations, with a minimum of 4°C (40°F) and a maximum reaching up to 35°C (95°F). Rainfall is not uncommon, with approximately 71 mm (2.8 in) of precipitation expected over 9 days. To top it off, the average humidity stands at a notable 78%, creating a warm and slightly muggy atmosphere.

September Temperature in Le Donjon

In September in Le Donjon, the average temperature is 17°C (63°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 4°C (40°F). Be prepared for a wide range of temperatures if you plan to visit during this time.

September Weather in Le Donjon: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Le Donjon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Le Donjon, September typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec384346525867707063544542
Data source: Temperature data for Le Donjon 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 Le Donjon

In Le Donjon in September, the precipitation amount is 71 mm (2.8 in) spread over 9 days.

September Precipitation Trends in Le Donjon

The chart displays monthly precipitation patterns in Le Donjon, 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 Le Donjon, September typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec81648152104907055717483138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Le Donjon

In Le Donjon in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

September Average Humidity in Le Donjon

This chart illustrates the average monthly humidity levels in Le Donjon, 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 Le Donjon is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%82%82%79%72%78%88%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Le Donjon

In Le Donjon in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Le Donjon, you can refer to this Hourly UV Index in Le Donjon.

Maximum UV Index Levels in Le Donjon for September

The chart shows the monthly maximum UV Index (UVI) for Le Donjon 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 Le Donjon typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Le Donjon 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 Le Donjon Compares to Other Months

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

This table compares monthly weather conditions in Le Donjon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)81 mm (3.2 inches)91%low
February Weather6°C (43°F)64 mm (2.5 inches)89%moderate
March Weather8°C (47°F)81 mm (3.2 inches)86%moderate
April Weather11°C (52°F)51 mm (2.0 inches)84%high
May Weather15°C (59°F)104 mm (4.1 inches)82%very high
June Weather19°C (67°F)90 mm (3.5 inches)82%very high
July Weather21°C (71°F)70 mm (2.7 inches)79%very high
August Weather21°C (70°F)55 mm (2.2 inches)72%very high
September Weather17°C (63°F)71 mm (2.8 inches)78%high
October Weather12°C (55°F)74 mm (2.9 inches)88%moderate
November Weather7°C (45°F)83 mm (3.3 inches)91%moderate
December Weather5°C (42°F)138 mm (5.4 inches)93%low

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