Belgium - weather in August

In August, the last month of summer, the climate in Belgium is relatively warm in Brussels and the plain, while it is a little cooler, humid and windy on the coast (see Ostend) and also in the Ardennes, in the south-east.

The average daily temperature is 17.5 °C (63.5 °F) on the coast (see Ostend), and 18.5/19 °C (65/66 °F) in the plain east of the coast (see Brussels, Antwerp), while it drops to 16 °C (61 °F) in the Ardennes (see Bastogne, Spa and Saint-Hubert), which are located further from the sea and at about 500 meters (1,600 feet) above sea level.
At night it can get very cool, in fact the temperature can drop below 10 °C (50 °F).
Being influenced by the North Sea, Belgium is quite sheltered from the heat waves that are becoming more frequent in some European countries, however, there can sometimes be very hot periods of short duration, during which the temperature can reach or exceed 35 °C (95 °F).

The rains are quite frequent and abundant. In July and August, Belgium experiences the second rainy peak of the year after December-January. On warm and sunny days, thunderstorms can break out in the afternoon and evening, especially in the Ardennes.

The sea is cold for swimming, however, its temperature is around 18 °C (64 °F), the highest of the year, which for tourists from northern Europe can be sufficient.

Although the sun in Belgium does not shine very often, it is the sunniest period of the year, which runs from April to August.

During the month, the length of the days gradually decreases. In August, the average day in Belgium is 14 and a half hours long.

The following tables show the climate averages in the month of August in Belgium in a selection of locations.

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Monthly climate averages - August

(from north to south)











See also: Belgium, the weather in July - September
The climate of Belgium