Belgium weather in May 2025

Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Belgium in May. Check more long-term weather averages for Belgium in May before you book your next holiday to Belgium in 2025/2026.

  • 18°C maximum daytime temperature in May in Belgium (Brussels)18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Belgium (Brussels)15
    15 days with some rainfall
  • 8°C minimum night-time temperature in May in Belgium (Brussels)8
    8°C min night temperature
  • 16 hours of daylight per day in May in Belgium (Brussels)16
    16 hours of daylight per day
  • No heat & humidity in May in Belgium (Brussels)0
    No heat & humidity
  • 69 mm monthly rainfall in May in Belgium (Brussels)69
    69 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Belgium (Brussels)6
    6 (High) UV index

More about Belgium

Belgium by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Belgium

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost

TUITUI deal finder

The May weather guide for Belgium (Brussels) 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.

Top Belgium destinations

Below are average maximum temperatures at popular countries, regions and places in Belgium in May. Select a holiday destination to see more weather parameters.

All Belgium destinations

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

Back to top

More about Belgium

How hot is it in Belgium in May?

Daytime temperatures usually reach 18°C in Brussels, Belgium in May, falling to 8°C at night.

How sunny is it in Belgium in May?

There are normally 7 hours of bright sunshine each day in Brussels, Belgium in May - that's 42% of daylight hours.

Does it rain in Belgium in May?

There are usually 15 days with some rain in Brussels, Belgium in May and the average monthly rainfall is 69mm.

Belgium May sunrise & sunset times

Browse the sunrise and sunset times for Belgium in May 2025. Select a month to view Belgium sunrise and sunset times for the next 12 months. The Belgium sunrise and sunset times shown below are for Brussels.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:16 20:04
Friday, 16th May 2025 04:52 20:27
Saturday, 31st May 2025 04:35 20:46

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^