The Argolic Gulf (Greek: Αργολικός κόλπος, also Gulf of Argolis or Gulf of Nafplio) is a gulf of the Aegean Sea off the east coast of the Peloponnese, Greece. It is about 50 km long and 30 km wide. Its main port is Nafplio, at its northwestern end. At the entrance to the gulf is the island Spetses. This gulf and its islands are sometimes combined with the Saronic Gulf and Saronic Islands, with the result called the Argo-Saronic Gulf and the Argo-Saronic Islands. It is surrounded by two regional units: Arcadia to the southwest and Argolis to the north and east. The river Inachos drains into the Argolic Gulf near Nea Kios. The main islands in the gulf are Psili, Plateia and Bourtzi, a small island with a Venetian fortress that protects the port of Nafplio. The surrounding mountains protect it from the strong summer Meltemi wind.
The Saronic, Argolic and eastern coast of the Peloponnesian Gulf is a very well protected cruising area with mild winds, averaging Force 3-4, usually from the North to North-East, ideal for relaxed sailing. In the Argolic Gulf, the wind is mostly in the summer, from the South-East, blowing Force 3-5. During spring and autumn the winds are normally weaker and blow from the South over the whole area.
La côte saronique, argolique et la côte E du golfe du Peloponèse sont très bien protégées pour la plaisance avec des vents de force 3-4, habituellement de N à NE, idéale pour des croisières tranquilles.Dans le golfe argolique, le vent souffle principalement en été
, vent du SE de 3-5.
Pendant le printemps et l'automne les vents sont normalement plus faibles et viennent du S.