Updated 4 Aug 2026 · recomputed nightly
Visiting Kos in April 2027?
April sits between the seasons in Kos: mild and showery, around 19°C / 66°F, Lively every day.
In short, a solid middle-ground pick.
Of the 12 months we forecast for Kos, April is the quietest. Its heaviest day is Thu 1 Apr, busier than 49% of the year; its lightest is Sat 10 Apr at 45%.
Preparing pays off in a month like this: timed-entry tickets and pre-booked tours turn the queue time into sightseeing time. see the options →
How busy is Kos in April?
It's quiet right through April — no crowded stretch to plan around.
Ships call on 1 of 30 days, a typical call day carrying at least 684 guests — real, but a secondary part of the crowd here; the season moves the needle more.
The month barely moves — every day lands between 45% and 49% of the year. Daylight runs about 13 hours.
Either side of it, May picks up.
The calmest days include the 10th, 12th and 13th — 13 days share that level, so there is room to choose.
April weather in Kos
Mild — around 19°C / 66°F, with a light jacket for the evenings, with rain on about 6 days.
Is April worth it in Kos?
A fair balance — decent weather, crowds you can work around.
Worth booking the marquee sights ahead for the busy days, but you can keep the rest of the trip flexible.
Keep planning
Built on: Greece's public holidays · school vacations across Germany and the Netherlands · the season pattern from official overnight stays · five years of weather records (2019–2023) · operator-confirmed events · the published cruise schedule
Every figure is recomputed nightly from real cruise schedules, public and school holidays, and long-run climate normals. Gaps are shown, not filled.
