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September Weather in Charleroi, Belgium

Last updated: August 22, 2025

In September, the average temperature in Charleroi, Belgium hovers around 15°C (59°F). Expect a minimum dip to 2°C (37°F) and a pleasant maximum reaching 33°C (91°F). During this month, precipitation averages 63 mm (2.5 in) over 10 days, with an average humidity of 82%.

September Temperature in Charleroi

In September in Charleroi, the average temperature is 15°C (59°F). Maximums can reach 33°C (91°F), and minimums can be as low as 2°C (37°F). It's advisable to pack layers to adapt to the wide temperature range while enjoying your travels.

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

The chart illustrates September temperature patterns in Charleroi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charleroi, September typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec384144495664656559534441
Data source: Temperature data for Charleroi 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 Charleroi

In Charleroi in September, the precipitation amount is 63 mm (2.5 in) over a span of 10 days.

September Precipitation Trends in Charleroi

The chart displays monthly precipitation patterns in Charleroi, 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 Charleroi, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6972754266747487638560102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Charleroi

In Charleroi in September, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

September Average Humidity in Charleroi

This chart illustrates the average monthly humidity levels in Charleroi, 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 Charleroi is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Charleroi

In Charleroi 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 Charleroi.

Maximum UV Index Levels in Charleroi for September

The chart shows the monthly maximum UV Index (UVI) for Charleroi 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 Charleroi typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Charleroi 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 Charleroi Compares to Other Months

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

This table compares monthly weather conditions in Charleroi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)69 mm (2.7 inches)91%low
February Weather5°C (41°F)72 mm (2.8 inches)89%moderate
March Weather7°C (45°F)75 mm (3.0 inches)87%moderate
April Weather10°C (50°F)42 mm (1.6 inches)85%moderate
May Weather13°C (56°F)66 mm (2.6 inches)82%high
June Weather18°C (64°F)74 mm (2.9 inches)82%very high
July Weather19°C (66°F)74 mm (2.9 inches)80%very high
August Weather18°C (65°F)87 mm (3.4 inches)76%high
September Weather15°C (59°F)63 mm (2.5 inches)82%moderate
October Weather12°C (53°F)85 mm (3.3 inches)89%moderate
November Weather7°C (45°F)60 mm (2.4 inches)92%low
December Weather5°C (41°F)102 mm (4.0 inches)92%low

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