14-day forecast — Kos Updated every hour
Wed · Today · 16 Sep
Cloudy
24°
22°
0.4 mm
Thu · Tomorrow · 17 Sep
Sunny
24°
20°
6%
Friday · 18 Sep
Sunny
24°
20°
5%
Saturday · 19 Sep
Sunny
25°
21°
6%
Sunday · 20 Sep
Cloudy
26°
21°
9%
Monday · 21 Sep
Cloudy
24°
22°
15%
Tuesday · 22 Sep
Sunny
25°
22°
6%
Wednesday · 23 Sep
Sunny
24°
22°
5%
Thursday · 24 Sep
Sunny
25°
21°
3%
Friday · 25 Sep
Sunny
22°
20°
3%
Saturday · 26 Sep
Cloudy
25°
20°
17%
Sunday · 27 Sep
Showers
25°
23°
7.1 mm
Monday · 28 Sep
Showers
25°
21°
3.5 mm
Tuesday · 29 Sep
Sunny
22°
20°
8%
About Kos
Flat, cycle-friendly and packed with beaches — Tigaki, Paradise and the hot springs of Therma.
Country Greece
Region Dodecanese
Continent Europe
Time zone Europe/Athens (+03:00)
Latitude 36.8930°
Longitude 27.2880°
Air quality Fair (EAQI 38)
🗺️ Kos and what is nearby
Forecast day by day — press play
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Markers show the daytime high for the selected day. Tap a marker for Kos detail; two fingers to move and zoom the map.
Climate in Kos in May
Averages over 8 years · best time to visit
Best time to visit Kos : March–October . With perfect weather, May is a recommended month to visit.
Photo: Wikimedia
April
May
June
Average temperature
▲ 17°C
20°C
▲ 25°C
Highest temperature
▲ 20°C
24°C
▲ 28°C
Lowest temperature
▲ 14°C
18°C
▲ 22°C
Sea temperature
▲ 18,4°C
20,0°C
▲ 23,3°C
Rainfall
▼ 32 mm
13 mm
▼ 7 mm
Days with rain
▼ 6 d
3 d
▼ 1 d
Humidity
▼ 70%
65%
▼ 57%
Sunshine hours per day
▲ 11,3 h
12,8 h
▲ 13,8 h
Cloud cover
▼ 14%
9%
▼ 6%
UV index (midday)
▲ 10
11
→ 11
Day length
13:09
14:09
14:39
Our rating
Good
Perfect
Perfect
Temperature day by day in May mean + moving average
17° 19° 21° 23° 1 6 11 16 21 26 31
Rainfall day by day in May mm
0 1.1 2.1 1 6 11 16 21 26 31
UV index day by day in May midday value, clear-sky
0 5.5 11 1 6 11 16 21 26 31
Climate averages calculated from the ERA5 archive (8 years; sea temperature from marine reanalysis). UV estimated from solar elevation.
Other destinations in Europe
Data source
Global weather models — international forecasts
The weather for Kos is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts update every hour; current measurements every 15 minutes. For destinations with a larger time difference from the UK, local time is shown above.