Quick decision
When to visit Kos?
🌞 Best time overall
June
🌡️ Optimal temperature
72°F–81°F in June
🌧 Least rain
4% rainy days in June
🌧 Wettest month
January (42%)
📅 Best score
9.8/10
By trip type
Best time by type of trip
BeachesJune–September — Paradise Beach, Tigaki and Therma (hot springs).
AsklepionMarch–October — Hippocrates' site, view over Turkey.
CyclingApril–October — flat island, cycle paths and inland villages.
Hot SpringsYear-round — Therma Beach, volcanic seaside springs.
Monthly climate data
Kos weather month by month
| Month | Min °F | Max °F | Rainy days (%) | Precip. in/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 52°F | 59°F | 42% | 0.1in | 9.0h | 5.8/10 |
| ⛅ February | 54°F | 61°F | 32% | 0.1in | 9.9h | 7.0/10 |
| ⛅ March | 55°F | 63°F | 23% | 0.1in | 11.0h | 7.2/10 |
| 🌤️ April | 59°F | 66°F | 16% | 0.0in | 12.1h | 7.7/10 |
| 🌤️ May | 64°F | 72°F | 12% | 0.0in | 13.4h | 8.6/10 |
| ☀️ June | 72°F | 81°F | 4% | 0.0in | 14.0h | 9.8/10 |
| ☀️ July | 75°F | 86°F | 1% | 0.0in | 13.8h | 9.4/10 |
| ☀️ August | 77°F | 86°F | 1% | 0.0in | 13.0h | 9.2/10 |
| ☀️ September | 73°F | 81°F | 4% | 0.0in | 12.0h | 9.4/10 |
| 🌤️ October | 66°F | 73°F | 11% | 0.0in | 10.1h | 8.3/10 |
| 🌤️ November | 61°F | 68°F | 28% | 0.1in | 9.8h | 7.4/10 |
| ⛅ December | 55°F | 63°F | 38% | 0.1in | 8.9h | 7.0/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 19°F, 17% rainy days, 12.2h sunshine/day. Score: 7.8/10.
☀️ Summer (Jun–Aug) — Excellent time
Average 29°F, 2% rainy days, 13.6h sunshine/day. Score: 9.5/10.
🍂 Autumn (Sep–Nov) — Good time
Average 23°F, 14% rainy days, 10.6h sunshine/day. Score: 8.4/10.
❄️ Winter (Dec–Feb) — Acceptable
Average 16°F, 37% rainy days, 9.3h sunshine/day. Score: 6.6/10.
Accommodation
Find a place to stay in Kos
Check availability during the recommended period
Tip : February, March offer a good weather/price balance — decent score with fewer crowds.
Search on Hotels.comActivities & tours
Activities and tours in Kos
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Kos
Compare flights from all airlines.
Search flights
Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
June is ideal with 4% rainy days and 27°F.
January is the wettest month with 42% rainy days.
Yes, June is the best month with an average of 27°F.
In winter, the average score is 6.6/10. Acceptable conditions for cultural visits.
Also explore
Destinations with similar climate
Weather rankings
Compare destinations by weather
Guides & comparisons