Cooling and heating degree days by country - annual data

In 2025, Bulgaria's cooling and heating degree days by country decreased by 24.9% compared to 2024, reaching 251.2.

Bulgaria accounts for 196.6% of the EU-27 total of 127.8.

Bulgaria ranks 7th out of 25 EU member states with reported data — in the top half of the distribution.

Over the past five years, the indicator has grown by 60.6% (from 156.4 in 2020).

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