Sun, sea & sand

Kos Town weather in January

Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.

21

Holiday weather in January

Poor

Best time to visit: June – September

Air temperature14°CNight 12°
Sea temperature17.7°Cfresh
Sunshine6hrs / dayof 9.9 h daylight
Rainy days12days / month165 mm

What is the weather like in Kos Town in January?

In January, Kos Town is cool: daytime highs average 14 °C, and nights cool down to about 12 °C. The sea averages 17.7 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 165 mm in total. All in all, January is not an ideal month for a holiday in Kos Town.

January compared

How the weather changes from December to February. Tap a month to open it.

DecemberDecJanuaryJanFebruaryFeb
Score252124
Day16°14°14°
Night14°12°12°
Sea19°18°17°
Sun6 h6 h7 h
Rain days121211

More details for January

Daylight
9 h 53 min07:23 – 17:16
UV index
2 · lowclear sky, noon (estimate)
Muggy days
0 daysdew point 18 °C or more
Wind
22 km/haverage daily peak
Cloud cover
48 %on average
Hot days
0 days30 °C or more
Time zone
UTC+2Europe/Athens

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %10 %
  • Sunshineweight 20 %52 %
  • Few rainy daysweight 20 %41 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in January

  • A jumper for the evenings
  • Rain jacket or umbrella

Kos Town in January: quick answers

Is Kos Town hot in January?

No. In January, Kos Town is cool: daytime highs average 14 °C and nights drop to about 12 °C.

Can you swim in Kos Town in January?

Only if you don't mind cold water: in January the sea averages just 17.7 °C. Comfortable swimming is possible from June to November.

Does it rain much in Kos Town in January?

Rain is frequent, with about 12 rainy days and 165 mm in total.

Kos Town month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)