January · Greece
Best time to visit Kos in January Weather, crowds & prices
Weather in Kos in January
Average temperature 14°C, 120 mm of rain, about 25 days with 6+ hours of sunshine and 68% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
4.7/10
Ranked #11 of 12 months
- Avg temp
- 14°C
- Rainfall
- 120 mm
- Humidity
- 68%
- Days with 6h+ sun
- 25
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in Kos scores 4.7/10 for beach and coastal travel - ranked #11 of 12. Expect around 14°C, 120 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Kos pairs the Asklepion and a plane tree linked to Hippocrates with sandy beaches and flat cycling routes.
January in Kos: expect compromises
January averages 14°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 120 mm — wet for this destination — but about 25 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4.7/10 here, 11th of 12 months, against 10/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? June scores 5.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Kos in January?
- In January, Kos averages 14°C, 120 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 4.7/10.
- Is January a good time to visit Kos?
- January earns a 4.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kos in January?
- Expect about 120 mm of rain in January. Average humidity is 68% and there are about 25 days with 6+ hours of sunshine.
Curated in Kos
Tickets & experiences
Things to do in Kos
Kos, Greece. Live activities and tours from GetYourGuide, matched to this destination.