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Belgium weather in August

Belgium in August averages 18°C (65°F), 90 mm of rain and 6.1 hours of sun a day.

Of the twelve months in Belgium, August is the second warmest, the wettest and the fourth sunniest.

Belgium
Average temp
18°C (65°F)

14–23°C · 57–73°F

Rainfall
90 mm

Showers likely

Sunshine
6.1 h

hours per day

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What is Belgium like in August?

Daytime

Days are mild.

Rain

Some rain is likely; pack for showers.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for Belgium in August?

  • A light rain jacket

    About 90 mm falls this month — showers rather than washouts.

  • A layer for the evening

    Evenings cool off noticeably once the sun is down.

August compared with July and September

August in Belgium is about the same temperature as July and 10 mm wetter than it, which averages 19°C (66°F).

August in Belgium is 3.1°C warmer than September and 23 mm wetter than it, which averages 15°C (60°F).

Daylight in Belgium in August

On 15 August the sun is up for 14 hours 32 minutes in Belgium, rising about 06:30 and setting about 21:02 local time.

August ends 1 hour 44 minutes shorter than it begins, so the last week of the month is a different length of day from the first.

That is 1 hour 58 minutes short of June, the longest-lit month here.

Belgium weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 1 Oct 2026358 places covered

How August compares with the rest of the year

August is highlighted. Every other month links to its own page.

Belgium weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January4°C / 39°F77 mm
February4°C / 40°F67 mm
March7°C / 45°F59 mm
April10°C / 51°F47 mm
May14°C / 57°F61 mm
June17°C / 62°F72 mm
July19°C / 66°F80 mm
August18°C / 65°F90 mm
September15°C / 60°F67 mm
October11°C / 53°F71 mm
November7°C / 45°F75 mm
December4°C / 39°F89 mm

Similar weather in August

Other destinations whose August averages sit close to this one.

Check another month

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FAQs about Belgium in August

August climate averages for Belgium, 1991–2020.

Belgium averages 18°C (65°F) in August, ranging from about 14°C (57°F) at night to 23°C (73°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Some. About 90 mm falls across August, enough to need a light jacket but not enough to reshape a trip.

Yes. August averages 18°C (65°F) against 15°C (60°F) in September — 3.1°C warmer.

August is about as warm as July, and 10 mm wetter.

Yes. August falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.

About 6.1 hours of sun a day on the 1991–2020 average.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 14 hours 32 minutes of daylight in mid-August, against 16 hours 30 minutes in June and 7 hours 58 minutes in December.

On 15 August, sunrise is about 06:30 and sunset about 21:02 local time. Both shift across the month — the month ends 1 hour 44 minutes shorter than it starts.