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September Weather in Morteau, France

Last updated: August 23, 2025

In September, the average temperature in Morteau, France hovers around 14°C (57°F), with a minimum of 3°C (37°F) and a maximum reaching 27°C (82°F). Expect 98 mm (3.9 in) of precipitation over about 13 days, and be prepared for a relatively high average humidity of 81%.

September Temperature in Morteau

In September in Morteau, the average temperature is 14°C (57°F). Maximums can reach 27°C (82°F), and minimums can be as low as 3°C (37°F). This pleasant climate makes Morteau an ideal destination for travelers looking to explore comfortably during this time.

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

The chart illustrates September temperature patterns in Morteau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morteau, September typically has an average temperature of 14°C (57°F), with highs reaching up to 27°C (82°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323641475362646457494035
Data source: Temperature data for Morteau 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 Morteau

In Morteau in September, the precipitation amount is 98 mm (3.9 in) over a span of 13 days.

September Precipitation Trends in Morteau

The chart displays monthly precipitation patterns in Morteau, 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 Morteau, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1411081478118618615214598123117206
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Morteau

In Morteau in September, humidity is 81%. With an average temperature of 14°C (57°F), this humidity feels like a warm, dense blanket that clings to your skin, making outdoor exploration a bit heavier and more tiring.

September Average Humidity in Morteau

This chart illustrates the average monthly humidity levels in Morteau, 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 Morteau 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 Morteau

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

Maximum UV Index Levels in Morteau for September

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

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

This table compares monthly weather conditions in Morteau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)141 mm (5.5 inches)91%low
February Weather2°C (37°F)108 mm (4.3 inches)89%moderate
March Weather5°C (41°F)147 mm (5.8 inches)87%moderate
April Weather9°C (48°F)81 mm (3.2 inches)84%high
May Weather12°C (53°F)186 mm (7.3 inches)80%very high
June Weather17°C (62°F)186 mm (7.3 inches)82%very high
July Weather18°C (65°F)152 mm (6.0 inches)82%very high
August Weather18°C (64°F)145 mm (5.7 inches)77%very high
September Weather14°C (57°F)98 mm (3.9 inches)81%high
October Weather10°C (49°F)123 mm (4.9 inches)89%moderate
November Weather4°C (40°F)116 mm (4.6 inches)89%low
December Weather2°C (35°F)205 mm (8.1 inches)91%low

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