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September Weather in Chanly, Belgium

Last updated: August 22, 2025

In September, the average temperature in Chanly, Belgium hovers around 14°C (58°F), making it a pleasant time to explore. However, be prepared for temperature fluctuations, as it can dip to a low of 2°C (36°F) and soar up to a steamy 33°C (91°F). With an average precipitation of 73 mm (2.9 in) spread over 10 days, don’t forget your umbrella! Additionally, the air is quite humid, with an average humidity level of 83%, creating a uniquely cozy atmosphere.

September Temperature in Chanly

In September in Chanly, the average temperature is 14°C (58°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 2°C (36°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both lightweight clothing for the heat and warmer layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Chanly, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chanly, September typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec353842485462646457514238
Data source: Temperature data for Chanly 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 Chanly

In Chanly in September, the precipitation amount is 73 mm (2.9 in) over the course of 10 days.

September Precipitation Trends in Chanly

The chart displays monthly precipitation patterns in Chanly, 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 Chanly, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec89871014983878080739673138
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chanly

In Chanly in September, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

September Average Humidity in Chanly

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

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

Maximum UV Index Levels in Chanly for September

The chart shows the monthly maximum UV Index (UVI) for Chanly 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 Chanly typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234588876421
Data source: Chanly 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 Chanly Compares to Other Months

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

This table compares monthly weather conditions in Chanly, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)89 mm (3.5 inches)91%low
February Weather4°C (39°F)87 mm (3.4 inches)90%moderate
March Weather6°C (43°F)101 mm (4.0 inches)88%moderate
April Weather9°C (48°F)49 mm (1.9 inches)84%moderate
May Weather12°C (54°F)83 mm (3.3 inches)81%very high
June Weather17°C (63°F)87 mm (3.4 inches)82%very high
July Weather18°C (64°F)80 mm (3.1 inches)82%very high
August Weather18°C (64°F)80 mm (3.2 inches)80%high
September Weather14°C (58°F)73 mm (2.9 inches)83%high
October Weather10°C (51°F)96 mm (3.8 inches)89%moderate
November Weather5°C (42°F)73 mm (2.9 inches)91%low
December Weather4°C (39°F)138 mm (5.4 inches)93%low

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