Cooling and heating degree days by country - annual data

In 2025, Greece's cooling and heating degree days by country increased by 4.5% compared to 2024, reaching 1,446.

Greece accounts for 51.1% of the EU-27 total of 2,828.

Greece ranks 24th out of 27 EU member states with reported data — in the bottom half of the distribution.

Over the past five years, the indicator has fallen by 7.5% (from 1,563 in 2020).

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