Brussels in 2050: climate change in numbers
Brussels has warmed 1.8 °C, comparing the last ten years (2016–2025) with 1951–1980 — faster than the world as a whole (+1.1 °C). By 2050, its climate is projected to feel like Berlin, Germany today.
2050 = 2040–2059 average, intermediate emissions (SSP2-4.5), median of CMIP6 climate models. “Today” = 1991–2020. Model range for average temperature: 11.3–12.9 °C.
Brussels: average annual temperature, 1950–2025 (°C)
1950 → 2025. Brussels's warming stripes: each stripe is one year's average temperature.
What Brussels's climate will feel like
Matching temperature, heat extremes, frost days and rainfall against the current climate of more than 1,000 large cities, Brussels's 2050 climate is closest to Berlin, Germany — about 700 km away.
| Brussels today | Brussels 2050 | Berlin today | |
|---|---|---|---|
| Average temperature | 10.8 °C | 11.9 °C | 9.9 °C |
| Average daily high | 14.2 °C | 15.4 °C | 13.5 °C |
| Hottest day | 33 °C | 35 °C | 34 °C |
| Frost days | 41 | 32 | 71 |
| Rainfall | 813 mm | 824 mm | 671 mm |
A year in Brussels, day by day
Each square is one day of the year; the coloured squares are the days that cross the threshold in an average year.
Days above 30 °C (86 °F) in Brussels
Tropical nights in Brussels (never cooler than 20 °C)
Frost days in Brussels (below 0 °C)
What changes by 2050
- The average temperature rises a further 1.1 °C compared with 1991–2020 (model range 0.6–2.2 °C).
- Days above 30 °C (86 °F) stay relatively rare: about 4 a year today and 8 by 2040–2059.
- Frost days fall from about 41 to 32 a year: shorter, milder winters.
Dangerous heat in Brussels
Even by 2090 under very high emissions, Brussels is not projected to have days with a heat index of 39 °C or more in a typical year. See where dangerous heat spreads worldwide.
Under high emissions
If emissions keep rising (SSP5-8.5), Brussels would average 12.4 °C by 2040–2059, with a hottest day around 36 °C and 9 days above 30 °C (86 °F) a year. By mid-century the scenarios are still close; the choices made now mostly decide what happens after 2050 — see the world in 2050.
More places
Compare Brussels with…Climate change in BelgiumAmsterdamParisLondonZurich
Frequently asked questions
How hot will Brussels be in 2050?
Under an intermediate emissions scenario (SSP2-4.5), Brussels's average annual temperature in 2040–2059 is projected at about 11.9 °C (range 11.3–12.9 °C across climate models), compared with 10.8 °C in 1991–2020. The hottest day of a typical year reaches about 35 °C (95 °F).
Is Brussels getting hotter?
Yes. The last ten years (2016–2025) averaged 1.8 °C warmer than 1951–1980 in Brussels, faster than the global average of 1.1 °C over the same period (Copernicus ERA5).
Which city will Brussels feel like in 2050?
By 2040–2059, Brussels's climate is projected to resemble the climate of Berlin, Germany today, based on temperature, heat extremes, frost and rainfall.
What would happen under high emissions?
Under a very high emissions scenario (SSP5-8.5), Brussels's average temperature in 2040–2059 is projected at 12.4 °C and the hottest day at about 36 °C. The differences between scenarios grow much larger after 2050.
Sources: World Bank Climate Change Knowledge Portal (CMIP6 0.25°, ERA5 0.25°); Copernicus ERA5 reanalysis (C3S/ECMWF); NASA NEX-GDDP-CMIP6 (Thrasher et al. 2022); GeoNames
Method: Delta method: ERA5 1995–2014 + CMIP6 ensemble change 2040–2059 vs 1995–2014. Values are for the ~25 km grid cell containing the city and can differ from a single weather station, especially for coastal and mountain cities. Methodology · Download CSV
Licence: Derived from ERA5 (CC BY 4.0, Copernicus/ECMWF), CMIP6 via World Bank CCKP (CC BY-SA 4.0) and GeoNames (CC BY 4.0). City data on this site: CC BY-SA 4.0. · Generated 17 October 2026