Cooling and heating degree days by country - annual data

In 2025, Slovakia's cooling and heating degree days by country decreased by 75.3% compared to 2024, reaching 30.4.

Slovakia accounts for 23.8% of the EU-27 total of 127.8.

Slovakia ranks 13th out of 25 EU member states with reported data — in the bottom half of the distribution.

Over the past five years, the indicator has grown by 59.9% (from 19.0 in 2020).

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