September Weather in Longchamps, Belgium

Last updated: August 22, 2025

In Longchamps, Belgium, the average temperature in September hovers around 14°C (57°F). Daily temperatures can vary significantly, with minimums dropping to 2°C (35°F) and maximums soaring up to 32°C (89°F). Expect an average precipitation of 77 mm (3.0 in) spread over approximately 10 days, complemented by a humid atmosphere with an average humidity level of 83%.

September Temperature in Longchamps

In September in Longchamps, the average temperature is 14°C (57°F). Maximum temperatures can reach 32°C (89°F), while minimums can drop as low as 2°C (35°F). Pack accordingly to enjoy a range of activities, from outdoor adventures to cozy evenings indoors.

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

The chart illustrates September temperature patterns in Longchamps, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longchamps, September typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (89°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec343741475362636356504137
Data source: Temperature data for Longchamps 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 Longchamps

In Longchamps in September, the total precipitation amount is 77 mm (3.0 in) spread over a duration of 10 days.

September Precipitation Trends in Longchamps

The chart displays monthly precipitation patterns in Longchamps, 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 Longchamps, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec89851024989978182779274138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Longchamps

In Longchamps in September, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

September Average Humidity in Longchamps

This chart illustrates the average monthly humidity levels in Longchamps, 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 Longchamps is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Longchamps

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

Maximum UV Index Levels in Longchamps for September

The chart shows the monthly maximum UV Index (UVI) for Longchamps 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 Longchamps typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234589886421
Data source: Longchamps 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 Longchamps Compares to Other Months

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

This table compares monthly weather conditions in Longchamps, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)89 mm (3.5 inches)91%low
February Weather3°C (37°F)85 mm (3.4 inches)90%moderate
March Weather5°C (41°F)102 mm (4.0 inches)88%moderate
April Weather8°C (47°F)49 mm (1.9 inches)84%moderate
May Weather12°C (54°F)89 mm (3.5 inches)81%very high
June Weather16°C (62°F)97 mm (3.8 inches)82%very high
July Weather17°C (63°F)81 mm (3.2 inches)82%very high
August Weather17°C (63°F)82 mm (3.2 inches)80%very high
September Weather14°C (57°F)77 mm (3.0 inches)83%high
October Weather10°C (50°F)92 mm (3.6 inches)89%moderate
November Weather5°C (41°F)74 mm (2.9 inches)91%low
December Weather3°C (38°F)138 mm (5.4 inches)93%low

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