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September Weather in Montaigu, France

Last updated: August 23, 2025

In Montaigu, France, the average temperature in September hovers around 17°C (63°F). Expect a range from a brisk 5°C (42°F) to a warm 34°C (93°F). During this time, anticipate approximately 48 mm (1.9 in) of precipitation spread over 9 days, with an average humidity level of 75%. Prepare accordingly!

September Temperature in Montaigu

In September in Montaigu, the average temperature is 17°C (63°F). Maximums can reach 34°C (93°F) and minimums can be as low as 5°C (42°F). This diverse temperature range makes Montaigu an ideal destination for travelers seeking both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Montaigu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montaigu, September typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec434548535965696763564845
Data source: Temperature data for Montaigu 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 Montaigu

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

September Precipitation Trends in Montaigu

The chart displays monthly precipitation patterns in Montaigu, 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 Montaigu, September typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5770755072813342488481113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montaigu

In Montaigu in September, humidity is 75%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities a bit sticky and requiring frequent breaks to stay refreshed during your travels.

September Average Humidity in Montaigu

This chart illustrates the average monthly humidity levels in Montaigu, 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 Montaigu is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%84%83%81%75%65%67%75%85%88%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Montaigu

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

Maximum UV Index Levels in Montaigu for September

The chart shows the monthly maximum UV Index (UVI) for Montaigu 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 Montaigu typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986522
Data source: Montaigu 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 Montaigu Compares to Other Months

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

This table compares monthly weather conditions in Montaigu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)57 mm (2.2 inches)88%low
February Weather7°C (46°F)70 mm (2.7 inches)87%moderate
March Weather9°C (49°F)75 mm (2.9 inches)84%moderate
April Weather12°C (53°F)50 mm (2.0 inches)83%high
May Weather15°C (59°F)72 mm (2.8 inches)81%very high
June Weather18°C (65°F)81 mm (3.2 inches)75%very high
July Weather20°C (69°F)33 mm (1.3 inches)65%very high
August Weather20°C (68°F)42 mm (1.6 inches)67%very high
September Weather17°C (63°F)48 mm (1.9 inches)75%high
October Weather13°C (56°F)84 mm (3.3 inches)85%moderate
November Weather9°C (48°F)81 mm (3.2 inches)88%low
December Weather7°C (46°F)113 mm (4.4 inches)90%low

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