Can You Drink Tap Water in Greece?

Tap water in Greece is generally safe to drink on the mainland and most major islands, meeting European Union water quality standards. In Athens, Thessaloniki, and other mainland cities, tap water is treated to EU standards and safe for consumption. Most Greeks in urban areas drink tap water and visitors can do the same. Athens' water comes from Marathon Lake and Mornos reservoirs, is comprehensively treated, and meets all safety requirements. On popular islands including Crete, Rhodes, Corfu, and Mykonos, tap water is treated and generally safe.

However, some smaller Greek islands face water scarcity and rely on desalination, water tankers, or limited local sources. On these islands, water quality can vary and many hotels recommend bottled water as a precaution. Santorini, despite being a major tourist destination, has limited freshwater and relies heavily on desalination. While treated water is technically safe, many accommodations provide bottled water due to taste and mineral content. On Paros, Naxos, Ios, and other Cycladic islands, verify water safety with your accommodation as infrastructure varies.

Mainland areas including the Peloponnese, northern Greece, and mountain regions have safe tap water meeting EU standards. In rural villages and remote areas, water may come from local springs which are generally safe but quality can vary. Throughout Greece, hotels in tourist areas often provide bottled water as a courtesy even where tap water is safe. The Mediterranean climate and island geography mean water scarcity affects some regions, but this doesn't necessarily indicate safety issues.

When in doubt on smaller islands, use bottled water which is readily available and affordable.