The weather in Kos is Mediterranean, with hot, dry summers and milder, rainier winters.
The main swimming season runs from late spring to early autumn. Out of season the island is quieter and cheaper, but some hotels and businesses close.
The best-value way to book is with Flight Hunter after comparing dates and travel options.
Spring in Kos
In March and April the weather is changeable and rain is still possible. May is more pleasant for sightseeing, and by the end of the month the sea gradually warms up.
It’s a good season for cycling and touring the villages, but pack a layer for the evening and a light rain jacket.
Summer in Kos
June is hot and relatively pleasant, July and August are hot and crowded, and the wind can be especially noticeable on open beaches. The sun is strong, so you need protection even on a day that feels mild.
Book an air-conditioned hotel and prefer activities in the morning or late afternoon. At midday it’s comfortable to rest by the pool or in the shade.
Autumn and Winter
September offers a warm sea and fewer crowds. In October there can still be swimming days, but the chance of rain increases. From November to February the weather is cool and tourist services shrink.
If you come in winter, plan a local-style holiday and don’t expect a summer resort atmosphere.
What to Pack
In summer you need light clothing, a hat, sunscreen and beach shoes. In spring and autumn, add a long layer and closed shoes. An up-to-date forecast matters more than the monthly average.
For a summer holiday you can choose accommodation using our guide to all-inclusive hotels in Kos. For flights from Israel, avoid departures or landings on Shabbat.
Frequently Asked Questions
What is the best month for Kos?
June and September usually offer a good balance of heat, pleasant sea and crowds.
Can you visit Kos in winter?
Yes, but it’s a quiet holiday with fewer tourist services and a greater chance of rain.
Main image: Photo by Pixabay.