Swimming in Greece in september 2025 Sea temperature by city in september

In september in Greece swimming conditions vary by city. Details below:

In september in Lindos, Afántou, Faliráki, Ialyssos, Kolymbia, Rhodes, Zante, Camiros, Monolithos and Petaloudes, swimming conditions are perfect! With water reaching a maximum of 84°F and an average of 81°F, going in the water (and staying there!) feels great.

As for Athens, Fira, Heraklion, Kardamaina, Paleokastrítsa, Platis Gialos, Agios Fokas, Chania, Corfu Island, Kos, Greek islands of the Cyclades, Imerovigli, Kalafati, Kamari, Kassiopi, Kavos, Kefalos, Mastichari, Mykonos, Oia, Ornos, Paros, Psarrou, Samos, Santorini, Sidari, Skiathos, Thessaloniki, Tigaki, Tourlos, Achilleio, Agios Stefanos, Akharavi, Alonissos, Antiparos, Chios, Elia, Faros Armenistis, Gregolimano, Hydra Island, Kalamata, Karpathos, Kavala, Lavrio, Lefkimmi, Lemnos, Lesbos, Lefkáda, Macheria, Matala, Moraitika, Nafplio, Naxos, Parga, Patras, Pélekas, Peloponnese, Samothrace, Skyros island, Thasos, Agia Galini, Agia Pelagia, Agios Georgios, Agios Nikolaos, Akrotiri, Ammoudi, Amorgos Island, Ano Rodakino, Áraxos, Areopoli, Artemi, Aspronissi, Astakos, Balí (Mylopotamos), Kefalonia island, Corinth, Kythira (Cythera), Aegina, Elounda, Eratini (Delphi Beach), Evros Delta National Park, Exo Gialos Thiras, Finikia, Folegrandos, Galaxidi, Gazi, Georgioúpoli, Glyfada, Gouves and Ierapetra, swimming is pleasant in september. The sea water is 77°F on average (min: 75°F/max: 80°F) so you can easily spend time in the water.