Kos in May
The weather in May
In May, Kos averages daytime highs of 21° and night-time lows of 17° — mild weather by day. Expect around 15 mm of precipitation spread over about 5 wet days, with average cloud cover near 14%.
Days are 1.8° warmer than in April on average, and June is warmer again by about 3.3°. The sea averages 19°, bracing but swimmable.
May scores 89/100 — excellent conditions for sightseeing — and ranks 5th of the twelve months for Kos. For the most comfortable weather, consider June, July and September instead.
Around the middle of the month the sun rises at 06:04 and sets at 20:12 local time, giving 14 h 08 min of daylight. Days lengthen by 48 minutes over the month.
In May, Saharan dust hazes the sky fairly often.
Why 89/100?
How the score for May is builtBeach score this month: 53/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Kos this month
Turgutreis
Greece's best in May
Kos in May: quick answers
Is May a good time to visit Kos?
May scores 89/100 for Kos, which we rate as excellent. Average highs are 21°C with 5 wet days.
How warm is Kos in May?
Daytime highs average 21°C and night-time lows 17°C in May.
Does it rain a lot in Kos in May?
Kos receives about 15 mm of precipitation in May, falling on around 5 days.
Can you swim in Kos in May?
The sea averages 19°C in May, refreshing but swimmable.