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September Weather in Les Mathes, France

Last updated: August 23, 2025

In September, the average temperature in Les Mathes, France hovers around 19°C (66°F). Expect a comfortable range, with minimum temperatures dipping to 10°C (49°F) and maximums peaking at 32°C (89°F). Prepare for some moisture, as the region typically sees 48 mm (1.9 in) of precipitation over 9 days, coupled with an average humidity level of 76%.

September Temperature in Les Mathes

In September in Les Mathes, the average temperature is 19°C (66°F). Maximum temperatures can reach up to 32°C (89°F), while the minimum can drop as low as 10°C (49°F). Expect pleasant weather, making it a great time to explore the outdoors and enjoy the local attractions.

September Weather in Les Mathes: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Les Mathes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Les Mathes, September typically has an average temperature of 19°C (66°F), with highs reaching up to 32°C (89°F) and lows dropping to around 10°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec464851556167707066605249
Data source: Temperature data for Les Mathes 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 Les Mathes

In Les Mathes in September, the total precipitation amount is 48 mm (1.9 in) spread over 9 days.

September Precipitation Trends in Les Mathes

The chart displays monthly precipitation patterns in Les Mathes, 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 Les Mathes, September typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec67717746757231294883102132
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Les Mathes

In Les Mathes in September, humidity is 76%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making travel mildly uncomfortable and encouraging frequent breaks in shaded or air-conditioned areas.

September Average Humidity in Les Mathes

This chart illustrates the average monthly humidity levels in Les Mathes, 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 Les Mathes is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%82%82%80%76%73%76%82%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Les Mathes

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

Maximum UV Index Levels in Les Mathes for September

The chart shows the monthly maximum UV Index (UVI) for Les Mathes 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 Les Mathes typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986532
Data source: Les Mathes 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 Les Mathes Compares to Other Months

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

This table compares monthly weather conditions in Les Mathes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)67 mm (2.6 inches)85%low
February Weather9°C (49°F)71 mm (2.8 inches)83%moderate
March Weather11°C (51°F)77 mm (3.0 inches)82%moderate
April Weather13°C (56°F)46 mm (1.8 inches)82%high
May Weather16°C (61°F)75 mm (2.9 inches)82%very high
June Weather19°C (67°F)72 mm (2.8 inches)80%very high
July Weather21°C (71°F)31 mm (1.2 inches)76%very high
August Weather21°C (70°F)29 mm (1.1 inches)73%very high
September Weather19°C (66°F)48 mm (1.9 inches)76%high
October Weather15°C (60°F)83 mm (3.3 inches)81%moderate
November Weather11°C (52°F)102 mm (4.0 inches)83%moderate
December Weather9°C (49°F)132 mm (5.2 inches)85%low

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