Belgium weather

Our guide to the weather in Belgium during August

24

Average high

5

UV Index

83mm

Monthly rainfall

72%

Humidity

Belgium is a vibrant and diverse country with plenty to explore for the adventurous traveller. August is generally warm and sunny, so it's a great time to visit the cities and beaches. We've looked at the most up-to-date weather data for Belgium, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Belgium weather in August.

How warm is it in Belgium during August?

August is typically the warmest month in Belgium. The temperature reaches around 24℃ during the daytime, falling away to 15℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Belgium during August?

On average, there will be 5 rainy days during the month, amounting to 82.7mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Belgium during August?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in August. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

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Weather in Belgium

Our month-by-month guide to the weather and climate in Belgium

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January
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February
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March
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April
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May
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June
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July
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August
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September
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October
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November
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December