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September Weather in Saint-Francois, France

Last updated: August 23, 2025

In September, the average temperature in Saint-Francois, France hovers around 18°C (64°F). Expect minimums of 5°C (40°F) and occasional peaks at 35°C (95°F). This month brings about 56 mm (2.2 in) of precipitation spread over 7 days, contributing to an average humidity of 78%. Stay prepared for a mix of warm days with a chance of rain!

September Temperature in Saint-Francois

In September in Saint-Francois, the average temperature is 18°C (64°F), with maximums reaching up to 35°C (95°F) and minimums dipping as low as 5°C (40°F). This diverse range of temperatures makes Saint-Francois a suitable destination for travelers seeking both warmth and cooler conditions.

September Weather in Saint-Francois: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Francois, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Francois, September typically has an average temperature of 18°C (64°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec394347535968727164554642
Data source: Temperature data for Saint-Francois 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-Francois

In Saint-Francois in September, the total precipitation amount is 56 mm (2.2 in) over a period of 7 days.

September Precipitation Trends in Saint-Francois

The chart displays monthly precipitation patterns in Saint-Francois, 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-Francois, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7560764286695237567776125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Francois

In Saint-Francois in September, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

September Average Humidity in Saint-Francois

This chart illustrates the average monthly humidity levels in Saint-Francois, 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-Francois is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%82%82%79%72%78%88%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Francois

In Saint-Francois 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 Saint-Francois, you can refer to this Hourly UV Index in Saint-Francois.

Maximum UV Index Levels in Saint-Francois for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Francois 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-Francois typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Saint-Francois 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-Francois Compares to Other Months

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

This table compares monthly weather conditions in Saint-Francois, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)75 mm (3.0 inches)91%low
February Weather6°C (44°F)59 mm (2.3 inches)89%moderate
March Weather8°C (47°F)76 mm (3.0 inches)86%moderate
April Weather12°C (53°F)42 mm (1.7 inches)84%high
May Weather15°C (60°F)86 mm (3.4 inches)82%very high
June Weather20°C (69°F)69 mm (2.7 inches)82%very high
July Weather22°C (72°F)52 mm (2.0 inches)79%very high
August Weather22°C (71°F)37 mm (1.5 inches)72%very high
September Weather18°C (64°F)56 mm (2.2 inches)78%high
October Weather13°C (55°F)77 mm (3.0 inches)88%moderate
November Weather8°C (46°F)76 mm (3.0 inches)91%moderate
December Weather6°C (42°F)125 mm (4.9 inches)93%low

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