nomadseason

September Weather in Arbois, France

Last updated: August 23, 2025

In Arbois, France, the average temperature for September hovers around 17°C (63°F). Expect a low of 5°C (42°F) and a high of 33°C (91°F), making it a month of varied warmth. With 56 mm (2.2 in) of precipitation spread over 8 days, don’t forget your umbrella! Additionally, the average humidity sits at a comfortable 81%, ensuring a cozy atmosphere throughout the month.

September Temperature in Arbois

In September in Arbois, the average temperature is 17°C (63°F), with maximums reaching 33°C (91°F) and minimums dropping as low as 5°C (42°F). This variability makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates September temperature patterns in Arbois, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arbois, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec374346535968717063544541
Data source: Temperature data for Arbois generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Arbois

In Arbois in September, the precipitation amount is 56 mm (2.2 in) over the course of 8 days.

September Precipitation Trends in Arbois

The chart displays monthly precipitation patterns in Arbois, 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 Arbois, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1179211758129936548569597174
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Arbois

In Arbois in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Arbois

This chart illustrates the average monthly humidity levels in Arbois, 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 Arbois is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Arbois

In Arbois 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 Arbois, you can refer to this Hourly UV Index in Arbois.

Maximum UV Index Levels in Arbois for September

The chart shows the monthly maximum UV Index (UVI) for Arbois 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 Arbois typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Arbois 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 Arbois Compares to Other Months

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

This table compares monthly weather conditions in Arbois, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)117 mm (4.6 inches)91%low
February Weather6°C (43°F)92 mm (3.6 inches)89%moderate
March Weather8°C (47°F)117 mm (4.6 inches)87%moderate
April Weather11°C (53°F)58 mm (2.3 inches)84%high
May Weather15°C (59°F)129 mm (5.1 inches)80%very high
June Weather20°C (68°F)93 mm (3.7 inches)82%very high
July Weather22°C (71°F)65 mm (2.6 inches)82%very high
August Weather21°C (71°F)48 mm (1.9 inches)77%very high
September Weather17°C (63°F)56 mm (2.2 inches)81%high
October Weather12°C (55°F)95 mm (3.7 inches)89%moderate
November Weather7°C (45°F)97 mm (3.8 inches)89%low
December Weather5°C (41°F)174 mm (6.9 inches)91%low

Compare Arbois's Climate with Cities Worldwide