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July Weather in Hoeilaart, Belgium

Last updated: August 22, 2025

In July, the average temperature in Hoeilaart, Belgium is a pleasant 19°C (66°F). Expect a wide temperature range, with minimums dipping to 8°C (46°F) and highs soaring up to 39°C (102°F). During this month, you'll encounter an average precipitation of 74 mm (2.9 in) spread over approximately 11 days, coupled with a humidity level of 80%.

July Temperature in Hoeilaart

In July in Hoeilaart, the average temperature is 19°C (66°F). The maximum can reach 39°C (102°F), while the minimum can drop as low as 8°C (46°F). This range makes it important for travelers to pack layers and stay prepared for varying weather conditions.

July Weather in Hoeilaart: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Hoeilaart, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hoeilaart, July typically has an average temperature of 19°C (66°F), with highs reaching up to 39°C (102°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec394145505664666660544542
Data source: Temperature data for Hoeilaart 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.

July Precipitation in Hoeilaart

In Hoeilaart in July, the precipitation amount is 74 mm (2.9 in) spread over the course of 11 days.

July Precipitation Trends in Hoeilaart

The chart displays monthly precipitation patterns in Hoeilaart, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Hoeilaart, July typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec657071376072748458785892
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Hoeilaart

In Hoeilaart in July humidity is 80%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel more strenuous and sticky, which can ultimately dampen the experience of traveling.

July Average Humidity in Hoeilaart

This chart illustrates the average monthly humidity levels in Hoeilaart, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Hoeilaart is approximately 80%, 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in Hoeilaart

In Hoeilaart in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Hoeilaart.

Maximum UV Index Levels in Hoeilaart for July

The chart shows the monthly maximum UV Index (UVI) for Hoeilaart in July, 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 July, the maximum UV index in Hoeilaart typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Hoeilaart July 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 July Weather in Hoeilaart Compares to Other Months

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

This table compares monthly weather conditions in Hoeilaart, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)65 mm (2.6 inches)91%low
February Weather5°C (42°F)70 mm (2.7 inches)89%low
March Weather7°C (45°F)71 mm (2.8 inches)87%moderate
April Weather10°C (50°F)36 mm (1.4 inches)85%moderate
May Weather13°C (57°F)60 mm (2.4 inches)82%high
June Weather18°C (65°F)72 mm (2.8 inches)82%very high
July Weather19°C (66°F)74 mm (2.9 inches)80%very high
August Weather19°C (66°F)84 mm (3.3 inches)76%high
September Weather15°C (60°F)58 mm (2.3 inches)82%moderate
October Weather12°C (54°F)78 mm (3.1 inches)89%moderate
November Weather7°C (45°F)57 mm (2.3 inches)92%low
December Weather5°C (42°F)92 mm (3.6 inches)92%low

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