What's on in Kos, Greece through the year
Kos, Greece has 5 curated events through the year — 1 holiday and 4 seasons. The ones to plan around: Orthodox Easter (April) and Sea warm enough (June). April, June, July, August and September are its peak-crowd months.
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Kos events and crowds by month
January in Kos
Kos weather in January →Busy — Christmas holidays in Greece, school holidays in 7 of the markets that fill it
Nothing new starts in January.
Still on: Winter shutdown (1 Nov – 31 Mar)
February in Kos
Kos weather in February →Quiet — school holidays in 3 of the markets that fill it, one of its worst months for weather
Nothing new starts in February.
Still on: Winter shutdown (1 Nov – 31 Mar)
March in Kos
Kos weather in March →Shoulder season — school holidays in 4 of the markets that fill it, an ordinary month
Nothing new starts in March.
Still on: Winter shutdown (1 Nov – 31 Mar)
April in Kos
Kos weather in April →Peak crowds — Orthodox Easter, Easter holidays (Orthodox) in Greece
- Holiday
Orthodox Easter
10–13 AprEaster & Holy WeekCrowdedThe first weekend the island wakes up: Greek families come out from Athens and the Dodecanese, the tavernas in Kos town reopen for it, and the spit-roasts are on the Sunday. Ferries and flights fill for the long weekend. Source ↗
May in Kos
Kos weather in May →Busy — Charter and resort season, school holidays in 4 of the markets that fill it
- Season
Charter and resort season
1 May – 15 Oct · usuallySummer season opensCrowdedKardamena, Tigaki and Mastichari run on northern European charter flights, and the hotels, bike hire and beach bars open and close with them. Outside the season the airport goes back to a couple of Athens flights a day.
Still on: Orthodox Easter (10–13 Apr)
June in Kos
Kos weather in June →Peak crowds — Charter and resort season, Summer holidays in Greece
- Season
Sea warm enough
15 Jun – 31 Oct · usuallyThe Aegean here is comfortable from late June and holds into October, well after the charter flights thin. The hot springs at Therma warm a corner of the sea year round.
- Season
Meltemi
15 Jun – 15 Sep · usuallyWind seasonRiskThe northerly blows hardest through July and August, which is why the windsurf schools are on the north coast and the sheltered swimming is at Kefalos and Paradise in the south. It also cancels the small boats to Nisyros.
Still on: Charter and resort season (1 May – 15 Oct (usually))
July in Kos
Kos weather in July →Peak crowds — Charter and resort season, Summer holidays in Greece
Nothing new starts in July.
Still on: Charter and resort season (1 May – 15 Oct (usually)), Sea warm enough (15 Jun – 31 Oct (usually)), Meltemi (15 Jun – 15 Sep (usually))
August in Kos
Kos weather in August →Peak crowds — Charter and resort season, Summer holidays in Greece
Nothing new starts in August.
Still on: Charter and resort season (1 May – 15 Oct (usually)), Sea warm enough (15 Jun – 31 Oct (usually)), Meltemi (15 Jun – 15 Sep (usually))
September in Kos
Kos weather in September →Peak crowds — Charter and resort season, Summer holidays in Greece
Nothing new starts in September.
Still on: Charter and resort season (1 May – 15 Oct (usually)), Sea warm enough (15 Jun – 31 Oct (usually)), Meltemi (15 Jun – 15 Sep (usually))
October in Kos
Kos weather in October →Busy — Charter and resort season, school holidays in 4 of the markets that fill it
Nothing new starts in October.
Still on: Charter and resort season (1 May – 15 Oct (usually)), Sea warm enough (15 Jun – 31 Oct (usually))
November in Kos
Kos weather in November →Shoulder season — school holidays in 2 of the markets that fill it, an ordinary month
- Season
Winter shutdown
1 Nov – 31 MarOff-season shutdownClosuresThe resort strips are shuttered and the island shrinks back to Kos town, where enough stays open for the locals. Ruins and the Asklepieion are yours, and the bike lanes are empty.
December in Kos
Kos weather in December →Busy — Christmas holidays in Greece, school holidays in 7 of the markets that fill it
Nothing new starts in December.
Still on: Winter shutdown (1 Nov – 31 Mar)