Kos: weather and best time to visit
Kos (Greece) reaches its warmest daytime temperatures in August at around 30°C; the coolest month is January at around 14°C. The sea is warmest in August at about 25°C.
Best time to visit
- 🏖 Beach
- 🏛 City trip
- 🥾 Hiking
Things to do in Kos
Tours, tickets and activities for your trip.
Kos climate, month by month
| Month | Day °C | Night °C | Sea °C | Rain d | Sun h | Beach | City | Hiking |
|---|---|---|---|---|---|---|---|---|
| Jan | 14° | 11° | 17° | 11 | 8 | 36 | 46 | 70 |
| Feb | 14° | 11° | 17° | 12 | 9 | 40 | 50 | 72 |
| Mar | 16° | 12° | 17° | 8 | 10 | 47 | 66 | 81 |
| Apr | 19° | 14° | 17° | 7 | 11 | 52 | 80 | 84 |
| May | 23° | 18° | 19° | 4 | 13 | 70 | 91 | 86 |
| Jun | 27° | 22° | 22° | 1 | 14 | 88 | 91 | 75 |
| Jul | 30° | 24° | 24° | 0 | 14 | 93 | 82 | 66 |
| Aug | 30° | 24° | 25° | 0 | 13 | 98 | 81 | 65 |
| Sep | 27° | 22° | 24° | 2 | 12 | 94 | 90 | 74 |
| Oct | 23° | 19° | 23° | 5 | 10 | 78 | 89 | 84 |
| Nov | 19° | 16° | 21° | 10 | 9 | 57 | 75 | 79 |
| Dec | 16° | 13° | 19° | 13 | 8 | 37 | 49 | 67 |
Rain d = average rain days per month · Sun h = average sunshine hours per day · scores 0–100, higher is better.
Every month in detail
Kos in January
Daytime highs around 14°C, nights near 11°C. January is the coldest month of the year. Expect about 11 rain days and 8 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.
Beach: poorCity: mixedHiking: goodMore destinations for January →
Kos in February
Daytime highs around 14°C, nights near 11°C. Expect about 12 rain days and 9 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.
Beach: mixedCity: mixedHiking: goodMore destinations for February →
Kos in March
Daytime highs around 16°C, nights near 12°C. Expect about 8 rain days and 10 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.
Beach: mixedCity: goodHiking: excellentMore destinations for March →
Kos in April
Daytime highs around 19°C, nights near 14°C. Expect about 7 rain days and 11 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.
Beach: mixedCity: excellentHiking: excellentMore destinations for April →
Kos in May
Daytime highs around 23°C, nights near 18°C. Expect about 4 rain days and 13 hours of sunshine per day. The sea is on the fresh side at 19°C.
Beach: goodCity: excellentHiking: excellentMore destinations for May →
Kos in June
Daytime highs around 27°C, nights near 22°C. No month gets more sunshine. Expect about 1 rain day and 14 hours of sunshine per day. The sea is pleasant for swimming at 22°C.
Beach: excellentCity: excellentHiking: goodMore destinations for June →
Kos in July
Daytime highs around 30°C, nights near 24°C. Expect about 0 rain days and 14 hours of sunshine per day. The sea is pleasant for swimming at 24°C.
Beach: excellentCity: excellentHiking: goodMore destinations for July →
Kos in August
Daytime highs around 30°C, nights near 24°C. August is the warmest month of the year. It is also the driest month of the year. The sea is at its warmest now. Expect about 0 rain days and 13 hours of sunshine per day. The sea is properly warm at 25°C.
Beach: excellentCity: excellentHiking: goodMore destinations for August →
Kos in September
Daytime highs around 27°C, nights near 22°C. Expect about 2 rain days and 12 hours of sunshine per day. The sea is properly warm at 24°C.
Beach: excellentCity: excellentHiking: goodMore destinations for September →
Kos in October
Daytime highs around 23°C, nights near 19°C. Expect about 5 rain days and 10 hours of sunshine per day. The sea is pleasant for swimming at 23°C.
Beach: goodCity: excellentHiking: excellentMore destinations for October →
Kos in November
Daytime highs around 19°C, nights near 16°C. Expect about 10 rain days and 9 hours of sunshine per day. The sea is on the fresh side at 21°C.
Beach: mixedCity: goodHiking: goodMore destinations for November →
Kos in December
Daytime highs around 16°C, nights near 13°C. It is the rainiest month of the year. Expect about 13 rain days and 8 hours of sunshine per day. The sea is on the fresh side at 19°C.
Beach: poorCity: mixedHiking: goodMore destinations for December →
Related destinations
More in Greece: Athens · Santorini · Mykonos · Crete · Chania · Rhodes
Similar climate: Kusadasi, Türkiye · Palermo, Italy · Malta, Malta · Bodrum, Türkiye