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September Weather in Trebons, France

Last updated: August 23, 2025

In Trebons, France, the average temperature in September is a mild 13°C (57°F). Expect a range that dips to a cool 1°C (34°F) at times, but can rise to a pleasant 27°C (81°F). This month also brings about 144 mm (5.7 in) of precipitation over approximately 17 days, contributing to an average humidity of 73%. Whether you're braving the chill or enjoying the warmth, be prepared for a mix of weather!

September Temperature in Trebons

In September in Trebons, the average temperature is 13°C (57°F). Maximums can reach 27°C (81°F), while minimums can drop as low as 1°C (34°F). It's a great time to visit for those who enjoy mild weather with the chance for warmer days.

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

The chart illustrates September temperature patterns in Trebons, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trebons, September typically has an average temperature of 13°C (57°F), with highs reaching up to 27°C (81°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec343840445159626256494037
Data source: Temperature data for Trebons 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 Trebons

In Trebons in September, the precipitation amount is 144 mm (5.7 in) over the course of 17 days.

September Precipitation Trends in Trebons

The chart displays monthly precipitation patterns in Trebons, 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 Trebons, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec109100129165182224187150144117128182
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Trebons

In Trebons in September humidity is 73%. With an average temperature of 13°C (57°F), this humidity feels like a damp chill that can cling to your clothes, making your travel experience a bit uncomfortable unless you dress in layers to stay warm and dry.

September Average Humidity in Trebons

This chart illustrates the average monthly humidity levels in Trebons, 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 Trebons is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Trebons

In Trebons 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 Trebons.

Maximum UV Index Levels in Trebons for September

The chart shows the monthly maximum UV Index (UVI) for Trebons 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 Trebons typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Trebons 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 Trebons Compares to Other Months

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

This table compares monthly weather conditions in Trebons, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)109 mm (4.3 inches)87%low
February Weather4°C (39°F)100 mm (3.9 inches)83%moderate
March Weather4°C (40°F)129 mm (5.1 inches)80%high
April Weather7°C (45°F)165 mm (6.5 inches)77%high
May Weather11°C (52°F)182 mm (7.2 inches)75%very high
June Weather15°C (59°F)224 mm (8.8 inches)74%very high
July Weather17°C (63°F)187 mm (7.3 inches)72%very high
August Weather17°C (62°F)150 mm (5.9 inches)70%very high
September Weather13°C (57°F)144 mm (5.7 inches)73%high
October Weather10°C (49°F)117 mm (4.6 inches)82%moderate
November Weather4°C (40°F)128 mm (5.0 inches)87%moderate
December Weather3°C (37°F)182 mm (7.2 inches)88%low

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