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September Weather in Pierrelaye, France

Last updated: August 23, 2025

In Pierrelaye, France, the average temperature in September is a pleasant 16°C (62°F). However, you can expect a range of temperatures where the minimum dips to 4°C (40°F) and can soar to a maximum of 33°C (91°F). During this month, precipitation averages 40 mm (1.6 in) over about 9 days, accompanied by an average humidity of 76%. Stay prepared for a mix of warm days and occasional showers!

September Temperature in Pierrelaye

In September in Pierrelaye, the average temperature is 16°C (62°F). Maximums can reach 33°C (91°F) and minimums can drop as low as 4°C (40°F). This variation makes it essential for travelers to pack clothing suitable for both warm and cooler weather conditions.

September Weather in Pierrelaye: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Pierrelaye, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pierrelaye, September typically has an average temperature of 16°C (62°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404346525765686762554643
Data source: Temperature data for Pierrelaye 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 Pierrelaye

In Pierrelaye in September, the precipitation amount is 40 mm (1.6 in) over the course of 9 days.

September Precipitation Trends in Pierrelaye

The chart displays monthly precipitation patterns in Pierrelaye, 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 Pierrelaye, September typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5669753470744959407866102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Pierrelaye

In Pierrelaye in September, humidity is 76%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping blanket that makes exploring the outdoors feel both refreshing and slightly muggy, urging travelers to take breaks often and enjoy the shade.

September Average Humidity in Pierrelaye

This chart illustrates the average monthly humidity levels in Pierrelaye, 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 Pierrelaye is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pierrelaye

In Pierrelaye 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 Pierrelaye, you can refer to this Hourly UV Index in Pierrelaye.

Maximum UV Index Levels in Pierrelaye for September

The chart shows the monthly maximum UV Index (UVI) for Pierrelaye 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 Pierrelaye typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Pierrelaye 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 Pierrelaye Compares to Other Months

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

This table compares monthly weather conditions in Pierrelaye, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (40°F)56 mm (2.2 inches)91%low
February Weather6°C (43°F)69 mm (2.7 inches)89%moderate
March Weather8°C (47°F)75 mm (3.0 inches)85%moderate
April Weather11°C (52°F)34 mm (1.3 inches)84%high
May Weather14°C (58°F)70 mm (2.7 inches)82%very high
June Weather19°C (66°F)74 mm (2.9 inches)80%very high
July Weather20°C (69°F)49 mm (1.9 inches)73%very high
August Weather20°C (68°F)58 mm (2.3 inches)68%very high
September Weather16°C (62°F)40 mm (1.6 inches)76%high
October Weather13°C (55°F)78 mm (3.1 inches)88%moderate
November Weather8°C (46°F)66 mm (2.6 inches)92%low
December Weather6°C (43°F)102 mm (4.0 inches)93%low

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