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Hottest month
Coldest month
Fly to Kos in June, July and August for long days featuring up to 11 hours of light and filled with lashings of hot, dry and sunny weather. The island's beaches will be calling out your name and the sea is at its warmest, inviting you to stay in for a while.
Travel to Kos in May, September or October for less crowds, lower prices and slightly cooler temperatures. The conditions are perfect for exploring with between six to ten hours of daylight, although there is an increased chance of rainfall. You'll find it easier to get a great spot on the island's sandy beaches and you won't have anyone treading on your heels at the historic sites.