5Calmer Waters and Ideal Swimming Conditions

The sea around Skiathos remains pleasantly warm well into October, with temperatures often reaching 23°C–24°C (73°F–75°F).

The reduced tourist activity makes swimming, snorkeling, and paddleboarding more relaxing. Autumn offers an intimate experience of the island’s crystal-clear waters, perfect for early morning swims when the beaches are empty and the water reflects the soft autumn sky.

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