Climate guide for Kos Island, Greece

Best Time to Visit
Kos Island

How to read the score (0–10)
05810
UnfavorableGoodOptimal

About Kos Island

Kos Island is a premier global destination in Greece, renowned for its unique natural beauty, rich culture, and world-class travel experiences. Dodecanese island of sandy beaches and Hippocrates tree.

Did you know?

Travel Tips

Best time to visit Kos Island
Check seasonal weather curves and book accommodations early for Kos Island.

Things to do in Kos Island

Kos Island, Greece. Live activities and tours from GetYourGuide, matched to this destination.

Frequently asked

When is the best time to visit Kos Island, Greece?
The best months to visit Kos Island are April, May, September, October. April is the single peak month with a climate score of 9.2/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Kos Island year-round?
Kos Island has a beach and coastal climate profile. Average monthly temperatures range from 11°C in January to 38°C in July, with climate scores between 7.5 and 9.2 out of 10.
Which months should I avoid in Kos Island?
The lowest-scoring months in Kos Island are January (7.5/10), February (7.5/10), March (7.5/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Kos Island?
January is the wettest month in Kos Island, averaging about 75 mm of rainfall. June is the driest, at roughly 35 mm.
Which is the sunniest month in Kos Island?
January sees the most sun in Kos Island, with about 20 sunny days on average - ideal for outdoor plans.
Is Kos Island good for beach and coastal travel?
Kos Island is profiled as a beach and coastal destination in Greece, Greece. Its highest-scoring window (April, May, September, October) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Kos Island calculated?
Each month is rated 0-10 using ERA5 climate normals for Kos Island: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for a beach and coastal trip.

Explore by month

Curated in Kos Island

Tickets & experiences