Cooling and heating degree days by country - annual data

In 2025, Greece's cooling and heating degree days by country decreased by 23.9% compared to 2024, reaching 409.4.

Greece accounts for 320.4% of the EU-27 total of 127.8.

Greece ranks 3rd 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 27.1% (from 322.1 in 2020).

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