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September Weather in Saint-Chartier, France

Last updated: August 23, 2025

In Saint-Chartier, France, the average temperature in September hovers around 17°C (64°F), with fluctuations ranging from a minimum of 4°C (40°F) to a sizzling maximum of 35°C (96°F). This month also sees an average precipitation of 52 mm (2.1 in) over roughly 6 days, contributing to an average humidity level of 76%. Prepare for a variety of weather conditions!

September Temperature in Saint-Chartier

In September in Saint-Chartier, the average temperature is 17°C (64°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 4°C (40°F). It's a great time to visit if you enjoy mild temperatures and the possibility of warm days contrasted with cooler nights.

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

The chart illustrates September temperature patterns in Saint-Chartier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Chartier, September typically has an average temperature of 17°C (64°F), with highs reaching up to 35°C (96°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404448535967706963564643
Data source: Temperature data for Saint-Chartier 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-Chartier

In Saint-Chartier in September, the precipitation amount is 52 mm (2.1 in) over the course of 6 days.

September Precipitation Trends in Saint-Chartier

The chart displays monthly precipitation patterns in Saint-Chartier, 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-Chartier, September typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec6263695183764844527069103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Chartier

In Saint-Chartier in September, humidity is 76%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel sluggish and draining, challenging travelers to stay hydrated and seek respite in shaded areas or air-conditioned spaces.

September Average Humidity in Saint-Chartier

This chart illustrates the average monthly humidity levels in Saint-Chartier, 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-Chartier 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-Chartier

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

Maximum UV Index Levels in Saint-Chartier for September

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

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

This table compares monthly weather conditions in Saint-Chartier, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)62 mm (2.5 inches)90%low
February Weather7°C (44°F)62 mm (2.5 inches)88%moderate
March Weather9°C (48°F)69 mm (2.7 inches)85%moderate
April Weather11°C (53°F)51 mm (2.0 inches)83%high
May Weather15°C (59°F)83 mm (3.3 inches)83%very high
June Weather19°C (67°F)76 mm (3.0 inches)79%very high
July Weather21°C (71°F)48 mm (1.9 inches)71%very high
August Weather21°C (70°F)44 mm (1.7 inches)68%very high
September Weather17°C (64°F)52 mm (2.1 inches)76%high
October Weather13°C (56°F)70 mm (2.8 inches)87%moderate
November Weather8°C (47°F)69 mm (2.7 inches)91%low
December Weather6°C (44°F)103 mm (4.1 inches)93%low

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