June · Greece
Best time to visit Kos in June Weather, crowds & prices
Weather in Kos in June
Average temperature 25°C, 5 mm of rain, about 30 days with 6+ hours of sunshine and 63% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
June score
10.0/10
Ranked #1 of 12 months
- Avg temp
- 25°C
- Rainfall
- 5 mm
- Humidity
- 63%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
June in Kos scores 10.0/10 for beach and coastal travel - the single best month of the year. Expect around 25°C, 5 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Kos pairs the Asklepion and a plane tree linked to Hippocrates with sandy beaches and flat cycling routes.
June in Kos tops the year's climate scores
June averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 5 mm for the month, with about 30 days with 6+ hours of sunshine and 14.6 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Kos at 10/10 — the reference point every other month on this page is measured against.
Pack light clothing, swimwear and real sun protection.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Kos in June?
- In June, Kos averages 25°C, 5 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 10.0/10.
- Is June a good time to visit Kos?
- June earns a 10.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kos in June?
- Expect about 5 mm of rain in June. Average humidity is 63% and there are about 30 days with 6+ hours of sunshine.
Curated in Kos
Tickets & experiences
Things to do in Kos
Kos, Greece. Live activities and tours from GetYourGuide, matched to this destination.