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September Weather in Witternesse, France

Last updated: August 23, 2025

In Witternesse, France, the average temperature in September is a pleasant 15°C (60°F), with a minimum dipping to 5°C (41°F) and a maximum reaching up to 29°C (85°F). Expect 55 mm (2.2 in) of rainfall spread over 11 days, contributing to an average humidity level of 80%.

September Temperature in Witternesse

In September in Witternesse, the average temperature is 15°C (60°F). Maximums can reach 29°C (85°F), and minimums can be as low as 5°C (41°F). This weather makes it a great time to explore outdoor activities while also enjoying the mild temperatures.

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

The chart illustrates September temperature patterns in Witternesse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Witternesse, September typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245505562656560544643
Data source: Temperature data for Witternesse 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 Witternesse

In Witternesse, in September, the total precipitation amount is 55 mm (2.2 in) over the course of 11 days.

September Precipitation Trends in Witternesse

The chart displays monthly precipitation patterns in Witternesse, 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 Witternesse, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6866703772694876558768108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Witternesse

In Witternesse in September humidity is 80%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can make even the simplest stroll feel like a workout, leaving travelers yearning for a refreshing breeze or shade to escape the weight of the air.

September Average Humidity in Witternesse

This chart illustrates the average monthly humidity levels in Witternesse, 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 Witternesse is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Witternesse

In Witternesse in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Witternesse.

Maximum UV Index Levels in Witternesse for September

The chart shows the monthly maximum UV Index (UVI) for Witternesse 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 Witternesse typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224679875421
Data source: Witternesse 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 Witternesse Compares to Other Months

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

This table compares monthly weather conditions in Witternesse, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)68 mm (2.7 inches)91%low
February Weather6°C (42°F)66 mm (2.6 inches)89%low
March Weather7°C (46°F)70 mm (2.7 inches)86%moderate
April Weather10°C (50°F)37 mm (1.5 inches)85%high
May Weather13°C (55°F)72 mm (2.8 inches)82%high
June Weather17°C (62°F)69 mm (2.7 inches)81%very high
July Weather18°C (65°F)48 mm (1.9 inches)76%very high
August Weather18°C (65°F)75 mm (3.0 inches)73%high
September Weather15°C (60°F)55 mm (2.2 inches)80%moderate
October Weather12°C (54°F)86 mm (3.4 inches)89%moderate
November Weather8°C (46°F)68 mm (2.7 inches)92%low
December Weather6°C (43°F)108 mm (4.3 inches)92%low

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