Hoeilaart Weather in September

September in Hoeilaart brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 11°C (52°F). Quite a bit of rainfall is expected, around 63 mm (2.5 in), so pack an umbrella.

Rainfall in Hoeilaart in September

You can typically expect 15 days of rain this month, averaging around 63 mm (2.5 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Hoeilaart in September

September is a good time to be in Hoeilaart. Days are excellent, reaching 20°C (68°F), with nights around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Hoeilaart in September

You can expect a moderate amount of sunlight, with approximately 143 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Hoeilaart in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Hoeilaart.

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For a detailed overview over the year and the best time to visit Belgium, check out our Hoeilaart's climate page.

Hoeilaart Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 51%  

Precipitation 63 mm (2.5 in)  

Rainy days 15 days  

Humidity 82% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 143 hours *  

Percentage Sunshine *  

* Data from: Ukkel, Belgium (9 KM, 5 Miles).

What to Wear in Hoeilaart in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Hoeilaart in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Belgium, check out our Hoeilaart's climate page.

More climate data for Hoeilaart

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Hoeilaart climate overview or explore weather in Belgium.