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September Weather in Heers, Belgium

Last updated: August 22, 2025

In September, the average temperature in Heers, Belgium hovers around 15°C (60°F). Expect a range that dips to a cool 3°C (37°F) at its lowest and can soar to 34°C (93°F) at its peak. With an average precipitation of 64 mm (2.5 in) over 9 days, you'll want to be prepared for some rain. Additionally, the average humidity sits at a comfortable 81%, adding to the overall climate experience.

September Temperature in Heers

In September in Heers, the average temperature is 15°C (60°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 3°C (37°F). This temperature range makes it an ideal time for travelers to enjoy a comfortable climate while exploring the region.

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

The chart illustrates September temperature patterns in Heers, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heers, September typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec384145505665666659544541
Data source: Temperature data for Heers 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 Heers

In Heers in September, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

September Precipitation Trends in Heers

The chart displays monthly precipitation patterns in Heers, 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 Heers, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6774763864848189648757103
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Heers

In Heers in September, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

September Average Humidity in Heers

This chart illustrates the average monthly humidity levels in Heers, 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 Heers is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Heers

In Heers 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 Heers.

Maximum UV Index Levels in Heers for September

The chart shows the monthly maximum UV Index (UVI) for Heers 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 Heers typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Heers 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 Heers Compares to Other Months

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

This table compares monthly weather conditions in Heers, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)67 mm (2.7 inches)91%low
February Weather5°C (41°F)74 mm (2.9 inches)90%low
March Weather7°C (45°F)76 mm (3.0 inches)87%moderate
April Weather10°C (50°F)38 mm (1.5 inches)84%moderate
May Weather14°C (57°F)64 mm (2.5 inches)77%high
June Weather18°C (65°F)84 mm (3.3 inches)74%very high
July Weather19°C (66°F)81 mm (3.2 inches)72%very high
August Weather19°C (66°F)89 mm (3.5 inches)71%high
September Weather15°C (60°F)64 mm (2.5 inches)81%moderate
October Weather12°C (54°F)87 mm (3.4 inches)88%moderate
November Weather7°C (45°F)57 mm (2.2 inches)91%low
December Weather5°C (42°F)103 mm (4.1 inches)92%low

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