Hoeilaart Weather in May

May in Hoeilaart sees daytime temperatures around 19°C (66°F) and lows of 9°C (48°F) at night. With around 69 mm (2.7 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Hoeilaart in May

Historically, the month has about 16 days of rain, averaging 69 mm (2.7 in) in total. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Hoeilaart in May

In May, Hoeilaart sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 9°C (48°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Hoeilaart in May

The area enjoys a balanced 189 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Hoeilaart in May

May has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

If you prefer dry days with pleasant temperatures, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 May

Min Temperature 9°C (48°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 54%  

Precipitation 69 mm (2.7 in)  

Rainy days 16 days  

Humidity 73% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 189 hours *  

Percentage Sunshine *  

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

What to Wear in Hoeilaart in May

For Hoeilaart in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Hoeilaart in May

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

4/10

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.