Brussels weather in August 2021

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  • 23°C maximum daytime temperature in August in Brussels23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in August in Brussels16
    16 days with some rainfall
  • 13°C minimum night-time temperature in August in Brussels13
    13°C min night temperature
  • 14 hours of daylight per day in August in Brussels14
    14 hours of daylight per day
  • No heat & humidity in August in Brussels0
    No heat & humidity
  • 63 mm monthly rainfall in August in Brussels63
    63 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Brussels6
    6 (High) UV index

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The August weather guide for Brussels, Belgium shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in Brussels in August?

Daytime temperatures usually reach 23°C in Brussels in August, falling to 13°C at night.

How sunny is it in Brussels in August?

There are normally 7 hours of bright sunshine each day in Brussels in August - that's 48% of daylight hours.

Does it rain in Brussels in August?

There are usually 16 days with some rain in Brussels in August and the average monthly rainfall is 63mm.

Metric (°C / mm)  |  Imperial (°F / inches)

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Brussels sunrise & sunset times for August 2021

Browse the sunrise & sunset times for Brussels in August 2021. Select a month to view Brussels sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st August 2021 06:09 21:28
Monday, 16th August 2021 06:32 21:01
Tuesday, 31st August 2021 06:55 20:30

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Where is hot in Belgium in August for 2021/2022?

Below are average maximum temperatures at popular destinations in Belgium in August. Select a destination to see more weather parameters.

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