Cooling and heating degree days by country - annual data

In 2025, Belgium's cooling and heating degree days by country increased by 114.7% compared to 2024, reaching 26.3.

Belgium accounts for 20.6% of the EU-27 total of 127.8.

Belgium ranks 14th out of 25 EU member states with reported data — in the bottom half of the distribution.

Over the past five years, the indicator has fallen by 46.0% (from 48.7 in 2020).

Source: Eurostat dataset nrg_chdd_a, accessed via the eupublicdata pipeline.