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September Weather in Saint-Usage, France

Last updated: August 23, 2025

In Saint-Usage, France, the average temperature in September sits at a comfortable 18°C (64°F). Expect a range that can dip as low as 4°C (39°F) and soar up to 34°C (94°F). This month also brings 55 mm (2.2 in) of precipitation over about 9 days, accompanied by a notable average humidity of 81%. Get ready for a mix of weather!

September Temperature in Saint-Usage

In September in Saint-Usage, the average temperature is 18°C (64°F). Maximum can reach 34°C (94°F) and minimum can be as low as 4°C (39°F). Travelers should be prepared for a wide range of temperatures, bringing both light clothing for warm days and warmer layers for cooler evenings.

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

The chart illustrates September temperature patterns in Saint-Usage, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Usage, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec384347535968727164554541
Data source: Temperature data for Saint-Usage 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-Usage

In Saint-Usage in September, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.

September Precipitation Trends in Saint-Usage

The chart displays monthly precipitation patterns in Saint-Usage, 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-Usage, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec85729254113826557559089148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Usage

In Saint-Usage in September, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

September Average Humidity in Saint-Usage

This chart illustrates the average monthly humidity levels in Saint-Usage, 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-Usage is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Usage

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

Maximum UV Index Levels in Saint-Usage for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Usage 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-Usage typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Saint-Usage 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-Usage Compares to Other Months

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

This table compares monthly weather conditions in Saint-Usage, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)85 mm (3.3 inches)91%low
February Weather6°C (43°F)72 mm (2.8 inches)89%moderate
March Weather8°C (47°F)92 mm (3.6 inches)87%moderate
April Weather12°C (53°F)54 mm (2.1 inches)84%high
May Weather15°C (60°F)113 mm (4.5 inches)80%very high
June Weather20°C (69°F)82 mm (3.2 inches)82%very high
July Weather22°C (72°F)65 mm (2.5 inches)82%very high
August Weather22°C (71°F)57 mm (2.2 inches)77%very high
September Weather18°C (64°F)55 mm (2.2 inches)81%high
October Weather13°C (55°F)90 mm (3.5 inches)89%moderate
November Weather7°C (45°F)89 mm (3.5 inches)89%low
December Weather5°C (42°F)148 mm (5.8 inches)91%low

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