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September Weather in Saint-Hilaire-sur-Yerre, France

Last updated: August 23, 2025

In September, the average temperature in Saint-Hilaire-sur-Yerre, France hovers around 17°C (63°F). Expect a minimum of 5°C (40°F) and a maximum reaching up to 34°C (94°F). Rainfall is moderate, with an average precipitation of 43 mm (1.7 in) spread over 8 days. The air can feel quite humid, with an average humidity level of 76%.

September Temperature in Saint-Hilaire-sur-Yerre

In September in Saint-Hilaire-sur-Yerre, the average temperature is 17°C (63°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 5°C (40°F). This fluctuation in temperatures makes it essential to pack layers for your travels.

September Weather in Saint-Hilaire-sur-Yerre: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Hilaire-sur-Yerre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Hilaire-sur-Yerre, September typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404347525765696862554643
Data source: Temperature data for Saint-Hilaire-sur-Yerre 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-Hilaire-sur-Yerre

In Saint-Hilaire-sur-Yerre in September, the total precipitation amount is 43 mm (1.7 in) over the course of 8 days.

September Precipitation Trends in Saint-Hilaire-sur-Yerre

The chart displays monthly precipitation patterns in Saint-Hilaire-sur-Yerre, 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-Hilaire-sur-Yerre, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec536371357872384944777095
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Hilaire-sur-Yerre

In Saint-Hilaire-sur-Yerre in September humidity is 76%. With an average temperature of 17°C (63°F), this humidity feels like traveling through a warm, enveloping blanket, making every outdoor adventure feel sticky and heavy, yet pleasantly refreshing when you find a cool breeze.

September Average Humidity in Saint-Hilaire-sur-Yerre

This chart illustrates the average monthly humidity levels in Saint-Hilaire-sur-Yerre, 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-Hilaire-sur-Yerre is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%85%84%83%79%71%68%76%87%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Hilaire-sur-Yerre

In Saint-Hilaire-sur-Yerre 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-Hilaire-sur-Yerre, you can refer to this Hourly UV Index in Saint-Hilaire-sur-Yerre.

Maximum UV Index Levels in Saint-Hilaire-sur-Yerre for September

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

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

This table compares monthly weather conditions in Saint-Hilaire-sur-Yerre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)53 mm (2.1 inches)90%low
February Weather6°C (43°F)63 mm (2.5 inches)88%moderate
March Weather8°C (47°F)71 mm (2.8 inches)85%moderate
April Weather11°C (52°F)35 mm (1.4 inches)83%high
May Weather14°C (58°F)78 mm (3.1 inches)83%very high
June Weather19°C (66°F)72 mm (2.8 inches)79%very high
July Weather21°C (69°F)38 mm (1.5 inches)71%very high
August Weather20°C (68°F)49 mm (1.9 inches)68%very high
September Weather17°C (63°F)43 mm (1.7 inches)76%high
October Weather13°C (55°F)77 mm (3.0 inches)87%moderate
November Weather8°C (46°F)70 mm (2.7 inches)91%low
December Weather6°C (43°F)95 mm (3.8 inches)93%low

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