Cephalonia — Water Temperature Today and Throughout the Year
Discover water temperatures in Cephalonia (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
Cephalonia, one of the Ionian Islands in Greece, is known for its stunning beaches and crystal-clear waters. The sea temperatures around the island vary throughout the year, creating a welcoming environment for swimmers and beachgoers. In the summer months (June to September), water temperatures typically range from 24–27°C (75–81°F). These warm conditions make it ideal for swimming, snorkeling, and other water sports, with beaches like Myrtos and Antisamos offering serene, turquoise waters.
During the spring (April to May) and autumn (October to November), the sea remains pleasant, with temperatures averaging between 18–22°C (64–72°F). While slightly cooler, these seasons are perfect for travelers seeking a quieter experience and the chance to explore the island’s breathtaking coastal scenery without the summer crowds. The mild waters are still suitable for a refreshing swim, particularly on sunny days.
In the winter months (December to February), the sea cools to around 14–16°C (57–61°F). While most visitors may not swim during this period, the island’s coastal areas still offer beauty and tranquility. The dramatic coastline, combined with the sound of the waves, provides a peaceful escape, making Cephalonia a year-round destination for nature lovers and adventurers.