Kos — Water Temperature Today and Throughout the Year
Discover water temperatures in Kos (Greece), with real-time data and annual trends. Find all locations in the region and check the water temperature in them. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
Kos, one of the Dodecanese islands in Greece, is known for its warm Aegean waters and picturesque beaches. During the summer months (June to September), sea temperatures typically range from 24–27°C (75–81°F), offering excellent conditions for swimming and water sports. Popular beaches like Paradise Beach and Agios Stefanos attract visitors with their crystal-clear waters and soft sand, making them ideal for relaxing and enjoying the sun.
In the spring (April to May) and autumn (October to November), the sea is slightly cooler, with temperatures averaging between 20–23°C (68–73°F). These moderate conditions are still comfortable for swimming, particularly during sunny days. The calmer atmosphere during these shoulder seasons allows visitors to enjoy the natural beauty and explore the island’s many coves and beaches at a more leisurely pace.
Winter months (December to February) bring cooler water temperatures, ranging from 16–18°C (61–64°F). While not ideal for swimming, these months offer opportunities for coastal walks and enjoying the island’s scenic seaside. The combination of mild winters and warm summers makes Kos an appealing destination for travelers seeking a blend of relaxation and adventure throughout the year.