Greece
Best time to visit Kos
For beach weather, the best time to visit Kos is June to September. For sightseeing in milder weather, try April to May and October to November.
Kos month by month
From daily weather for 2011–2025. Tap a month for the full picture.
- January15°WetCoolSea 18° · 14 rainy days
- February16°CoolSea 17° · 9 rainy days
- March17°CoolSea 17° · 7 rainy days
- April21°Good for sightseeingSea 17° · 5 rainy days
- May25°Good for sightseeingSea 19° · 3 rainy days
- June30°Beach weatherSea 23° · 1 rainy day
- July32°Beach weatherSea 25° · 0 rainy days
- August32°Beach weatherSea 26° · 0 rainy days
- September29°Beach weatherSea 25° · 1 rainy day
- October25°Good for sightseeingSea 23° · 4 rainy days
- November21°Good for sightseeingSea 22° · 8 rainy days
- December17°WetCoolSea 20° · 12 rainy days
Beach weather = highs of 25°C or more and fewer than seven rainy days. Good for sightseeing = highs between 18°C and 28°C and fewer than ten rainy days. Very hot = highs of 33°C or more. Wet = ten or more rainy days. Cool = highs below 18°C. How we measure
Quick answers
- When is the best time to visit Kos?
- For beach weather, the best time to visit Kos is June to September. For sightseeing in milder weather, try April to May and October to November.
- What is the hottest month in Kos?
- July, with average highs of 32°C and lows of 24°C.
- When is the sea warmest in Kos?
- August, at about 26°C. It is coolest in March, at about 17°C.
- What is the rainiest month in Kos?
- January, with rain on about 14 days and 228 mm in a typical month.