GR Kos · Winter

Kos weather
in January

January is a difficult time — June offers much better conditions.

Open-Meteo · 10 years · 12 months compared · 36.89°N 27.09°E
15°CMax temperature
42%Rainy days
9.0hSunshine / day

Kos weather in January

⚠️ Fair
🌡️ Temperature min / max
11°C – 15°C
🌧 Rainy days
42% of days
☀️ Sunshine
9.0h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
5.8/10
📅 📅 Best month
June (9.8/10)

Should you visit Kos in January?

⚠️ Fair

✅ Yes if: you want the lowest prices and minimal crowds.

❌ No if: you're looking for summer weather — conditions don't support it.

🌧 Rain : ████░░░░░░ 42%
🌡 Temperature : ████░░░░░░ 15°C
☀️ Sunshine : ██████░░░░ 9.0h/d

Our take: January is an average time for Kos. June (9.8/10) is clearly preferable.

Kos in January by trip type

What to expect in January

🎯 Quiet uncrowded beaches — ideal for coastal walks In January, Kos sees 15°C during the day with 9.0h of sunshine per day. Expect rain on 42% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. June (9.8/10) is significantly better if possible.

All months for Kos

Month-by-month comparison

MonthMin °CMax °CRain %Precip mmSun h/dScore
🌦️ January11°C15°C42%3.79.0h5.8/10
⛅ February12°C16°C32%2.59.9h7.0/10
⛅ March13°C17°C23%1.711.0h7.2/10
🌤️ April15°C19°C16%1.012.1h7.7/10
🌤️ May18°C22°C12%0.513.4h8.6/10
☀️ June22°C27°C4%0.314.0h9.8/10
☀️ July24°C30°C1%0.013.8h9.4/10
☀️ August25°C30°C1%0.013.0h9.2/10
☀️ September23°C27°C4%0.212.0h9.4/10
🌤️ October19°C23°C11%0.710.1h8.3/10
🌤️ November16°C20°C28%2.79.8h7.4/10
⛅ December13°C17°C38%3.78.9h7.0/10
Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years
📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In January, Kos averages 15°C, 42% rainy days and 9.0h of sunshine per day. Overall weather score: 5.8/10. See methodology →

January vs June (best month)

The best month is June (score 9.8/10). Difference:

FAQ — Kos in January

Is January a good time to visit Kos?
January is an acceptable time for Kos (score 5.8/10). Conditions are decent but not optimal — consider June (9.8/10) if possible.
What to do in Kos in January?
With 15°C max and 9.0h of sunshine, favour indoor activities — museums, spas, gastronomy.

Find a place to stay in Kos

Find places to stay in Kos in January Search on Hotels.com

Activities and tours in Kos

Guided tours, skip-the-line tickets and local experiences. Browse activities on GetYourGuide

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📅 Live forecast — next 12 months

Real-time data with ECMWF seasonal corrections · updated daily

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