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Kos

Kos, Greece

Kos, Greece © By Arne Müseler

Kos Sea Temperature

This page provides detailed information about the water temperature in Kos, Greece. All countries, cities and resorts on the coast. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Sea Temperature

17.1°C

minimal

17.3°C

average

17.5°C

maximum

Graph of Sea Temperature Changes in Kos Over the Last 60 Days

Water temperature in the Kos by month

MonthMinimumMaximum
January16°C21°C
February16°C20°C
March15°C19°C
April15°C21°C
May16°C24°C
June19°C26°C
July21°C27°C
August23°C28°C
September22°C28°C
October20°C26°C
November19°C25°C
December18°C22°C

The Warmest Places on the Seaside in Kos Today

List of All Coastal Cities in Kos

Seas and Oceans that Border Kos

Greece: List of Regions

Water Temperature in Kos: General Trends and Swimming Opportunities

Original name of the region: Κως

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.

Geographical Location of Kos

Frequently Asked Questions About Kos and its Water Temperatures

What is the current sea temperature on the coast of Kos in Greece?

The sea temperature today on the coast of Kos ranges from 63°F (17.1°C) in Kardamena to 64°F (17.5°C) in Kos.

When does the sea in Kos in Greece reach a comfortable swimming temperature?

In Kos (Greece) the sea temperature can reach 70°F (21°C) in May, June, July, August, September, October, and November. It should be noted that the mentioned values apply to the warmest point of the region. In other areas of Kos, the values may vary.

What are the most popular seaside resorts in Kos?

The most popular places on the coast of Kos (Greece), based on our visitors' interest in the water temperature, are cities Kos, Tigaki, Marmari, Kardamena, and Kefalos.

Which seas and oceans does the Kos have access to?

Kos (Greece) has access only to the Aegean Sea.