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September Weather in Les Rosiers-sur-Loire, France

Last updated: August 23, 2025

In September, the average temperature in Les Rosiers-sur-Loire, France is a pleasant 18°C (64°F). Daily highs can reach up to 35°C (96°F), while chilly nights may drop to a cool 5°C (41°F). Expect about 33 mm (1.3 in) of precipitation over 7 days, with an average humidity level of 75%, making it essential to plan for both warmth and the occasional rain.

September Temperature in Les Rosiers-sur-Loire

In September in Les Rosiers-sur-Loire, the average temperature is 18°C (64°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 5°C (41°F). This moderate climate makes Les Rosiers-sur-Loire a great destination for travelers seeking a pleasant escape.

September Weather in Les Rosiers-sur-Loire: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Les Rosiers-sur-Loire, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Les Rosiers-sur-Loire, September typically has an average temperature of 18°C (64°F), with highs reaching up to 35°C (96°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec424548535966706964564745
Data source: Temperature data for Les Rosiers-sur-Loire 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 Rosiers-sur-Loire

In Les Rosiers-sur-Loire in September, the precipitation amount is 33 mm (1.3 in) over a period of 7 days.

September Precipitation Trends in Les Rosiers-sur-Loire

The chart displays monthly precipitation patterns in Les Rosiers-sur-Loire, 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 Rosiers-sur-Loire, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec496367467190323533747491
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Les Rosiers-sur-Loire

In Les Rosiers-sur-Loire in September, humidity is 75%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket enveloping you, making your travels a bit sticky and requiring frequent breaks in the shade to stay comfortable.

September Average Humidity in Les Rosiers-sur-Loire

This chart illustrates the average monthly humidity levels in Les Rosiers-sur-Loire, 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 Rosiers-sur-Loire 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 Les Rosiers-sur-Loire

In Les Rosiers-sur-Loire 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 Rosiers-sur-Loire, you can refer to this Hourly UV Index in Les Rosiers-sur-Loire.

Maximum UV Index Levels in Les Rosiers-sur-Loire for September

The chart shows the monthly maximum UV Index (UVI) for Les Rosiers-sur-Loire 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 Rosiers-sur-Loire typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Les Rosiers-sur-Loire 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 Rosiers-sur-Loire Compares to Other Months

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

This table compares monthly weather conditions in Les Rosiers-sur-Loire, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)49 mm (1.9 inches)88%low
February Weather7°C (45°F)63 mm (2.5 inches)87%moderate
March Weather9°C (49°F)67 mm (2.6 inches)84%moderate
April Weather12°C (54°F)46 mm (1.8 inches)83%high
May Weather15°C (60°F)71 mm (2.8 inches)81%very high
June Weather19°C (67°F)90 mm (3.5 inches)75%very high
July Weather21°C (70°F)32 mm (1.3 inches)65%very high
August Weather20°C (69°F)35 mm (1.4 inches)67%very high
September Weather18°C (64°F)33 mm (1.3 inches)75%high
October Weather13°C (56°F)74 mm (2.9 inches)85%moderate
November Weather8°C (47°F)74 mm (2.9 inches)88%low
December Weather7°C (45°F)91 mm (3.6 inches)90%low

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