Kos weather
Our guide to the weather in Kos during January
Kos, Greece is a picturesque island paradise with plenty of activities for the adventurous traveller, no matter the time of year. We've looked at the most up-to-date weather data for Kos, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Kos weather in January.
What's the temperature like in Kos during January?
January is typically the coolest month in Kos. The temperature reaches around 14℃ during the daytime, falling away to 11℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Kos during January?
January is typically the wettest month in Kos. On average, there will be 8 rainy days during the month, amounting to 174.6mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Kos during January?
Expect moderate breeze becoming stronger at times during January, with occasional gusts up to 20mph. With moderate humidity, the wind will feel chilly, so you'll want to wear layers.
How warm is the sea in Kos during January?
The water around Kos is around 18℃ during January. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.
Weather in Kos
Our month-by-month guide to the weather and climate in Kos
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