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September Weather in Lormaison, France

Last updated: August 23, 2025

In September, the average temperature in Lormaison, France hovers around 16°C (61°F), with a minimum of 4°C (40°F) and peaks reaching up to 32°C (89°F). Be prepared for occasional rain, as precipitation totals 36 mm (1.4 in) over 8 days. With an average humidity of 76%, you'll experience a distinctly humid atmosphere, perfect for enjoying the lush surroundings.

September Temperature in Lormaison

In September in Lormaison, the average temperature is 16°C (61°F). Maximums can reach 32°C (89°F), while minimums can drop as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures, making it a great time for versatile dressing and outdoor activities.

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

The chart illustrates September temperature patterns in Lormaison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lormaison, September typically has an average temperature of 16°C (61°F), with highs reaching up to 32°C (89°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec404346515664676661544543
Data source: Temperature data for Lormaison 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 Lormaison

In Lormaison in September, the precipitation amount is 36 mm (1.4 in) over a period of 8 days.

September Precipitation Trends in Lormaison

The chart displays monthly precipitation patterns in Lormaison, 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 Lormaison, September typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec5666753874694459378068101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lormaison

In Lormaison in September humidity is 76%. With an average temperature of 16°C (61°F), this humidity feels like a warm embrace that makes traveling feel slightly heavy yet refreshing, often prompting you to seek shade or indulge in ice-cold drinks to stay comfortable.

September Average Humidity in Lormaison

This chart illustrates the average monthly humidity levels in Lormaison, 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 Lormaison 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 Lormaison

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

Maximum UV Index Levels in Lormaison for September

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

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

This table compares monthly weather conditions in Lormaison, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)56 mm (2.2 inches)91%low
February Weather6°C (43°F)66 mm (2.6 inches)89%moderate
March Weather8°C (46°F)75 mm (2.9 inches)85%moderate
April Weather10°C (51°F)38 mm (1.5 inches)84%high
May Weather14°C (57°F)74 mm (2.9 inches)82%very high
June Weather18°C (64°F)69 mm (2.7 inches)80%very high
July Weather20°C (68°F)44 mm (1.7 inches)73%very high
August Weather19°C (67°F)59 mm (2.3 inches)68%very high
September Weather16°C (61°F)36 mm (1.4 inches)76%high
October Weather12°C (55°F)80 mm (3.1 inches)88%moderate
November Weather7°C (46°F)68 mm (2.7 inches)92%low
December Weather6°C (43°F)101 mm (4.0 inches)93%low

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