Kos: weather and best time to visit
Kos (Greece) reaches its warmest daytime temperatures in August at around 28°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° | 12 | 8 | 35 | 44 | 68 |
| Feb | 14° | 11° | 17° | 12 | 9 | 39 | 48 | 71 |
| Mar | 15° | 13° | 17° | 8 | 10 | 44 | 60 | 78 |
| Apr | 18° | 15° | 17° | 6 | 12 | 49 | 74 | 84 |
| May | 21° | 18° | 19° | 3 | 13 | 65 | 90 | 90 |
| Jun | 25° | 22° | 22° | 1 | 14 | 83 | 95 | 84 |
| Jul | 27° | 24° | 24° | 0 | 14 | 91 | 91 | 75 |
| Aug | 28° | 25° | 25° | 0 | 13 | 96 | 90 | 74 |
| Sep | 25° | 23° | 24° | 2 | 12 | 89 | 93 | 79 |
| Oct | 22° | 20° | 23° | 5 | 10 | 74 | 86 | 85 |
| Nov | 19° | 16° | 21° | 9 | 9 | 55 | 73 | 78 |
| Dec | 16° | 13° | 19° | 13 | 8 | 35 | 48 | 66 |
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 12 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: poorCity: mixedHiking: goodMore destinations for February →
Kos in March
Daytime highs around 15°C, nights near 13°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: goodMore destinations for March →
Kos in April
Daytime highs around 18°C, nights near 15°C. Expect about 6 rain days and 12 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.
Beach: mixedCity: goodHiking: excellentMore destinations for April →
Kos in May
Daytime highs around 21°C, nights near 18°C. Expect about 3 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 25°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: excellentMore destinations for June →
Kos in July
Daytime highs around 27°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 28°C, nights near 25°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 25°C, nights near 23°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 22°C, nights near 20°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 9 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: Malta, Malta · Costa Smeralda, Italy · Menorca, Spain · Kusadasi, Türkiye