September Weather in Saint-Etienne-Vallee-Francaise, France

Last updated: August 23, 2025

In Saint-Etienne-Vallee-Francaise, France, the average temperature in September hovers around 16°C (61°F). Expect a refreshing range where temperatures can dip to a brisk 4°C (39°F) and peak at a warm 30°C (86°F). With an average humidity of 72%, you might also encounter some rain, as precipitation averages 73 mm (2.9 in) over about 6 days.

September Temperature in Saint-Etienne-Vallee-Francaise

In September in Saint-Etienne-Vallee-Francaise, the average temperature is 16°C (61°F). Maximum temperatures can reach 30°C (86°F), while minimums can drop as low as 4°C (39°F). Pack layers to enjoy your adventures comfortably during this varied weather.

September Weather in Saint-Etienne-Vallee-Francaise: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Etienne-Vallee-Francaise, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Etienne-Vallee-Francaise, September typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (86°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec384245495664686861534440
Data source: Temperature data for Saint-Etienne-Vallee-Francaise 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 Saint-Etienne-Vallee-Francaise

In Saint-Etienne-Vallee-Francaise in September, the precipitation amount is 73 mm (2.9 in) over a span of 6 days.

September Precipitation Trends in Saint-Etienne-Vallee-Francaise

The chart displays monthly precipitation patterns in Saint-Etienne-Vallee-Francaise, 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 Saint-Etienne-Vallee-Francaise, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec8675119126127101526473199195107
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Etienne-Vallee-Francaise

In Saint-Etienne-Vallee-Francaise in September humidity is 72%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making every step feel heavier and requiring extra effort while traveling.

September Average Humidity in Saint-Etienne-Vallee-Francaise

This chart illustrates the average monthly humidity levels in Saint-Etienne-Vallee-Francaise, 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 Saint-Etienne-Vallee-Francaise is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%88%84%81%77%76%68%61%72%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Etienne-Vallee-Francaise

In Saint-Etienne-Vallee-Francaise in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Saint-Etienne-Vallee-Francaise.

Maximum UV Index Levels in Saint-Etienne-Vallee-Francaise for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Etienne-Vallee-Francaise 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 Saint-Etienne-Vallee-Francaise typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Saint-Etienne-Vallee-Francaise 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 Saint-Etienne-Vallee-Francaise Compares to Other Months

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

This table compares monthly weather conditions in Saint-Etienne-Vallee-Francaise, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)86 mm (3.4 inches)91%low
February Weather5°C (42°F)75 mm (2.9 inches)88%moderate
March Weather7°C (45°F)119 mm (4.7 inches)84%high
April Weather10°C (50°F)125 mm (4.9 inches)81%high
May Weather13°C (56°F)127 mm (5.0 inches)77%very high
June Weather18°C (64°F)101 mm (4.0 inches)76%very high
July Weather20°C (69°F)52 mm (2.1 inches)68%very high
August Weather20°C (68°F)64 mm (2.5 inches)61%very high
September Weather16°C (61°F)73 mm (2.9 inches)72%high
October Weather12°C (53°F)199 mm (7.8 inches)88%moderate
November Weather7°C (45°F)195 mm (7.7 inches)91%moderate
December Weather4°C (40°F)107 mm (4.2 inches)92%low

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