Kastellorizo weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Excellent
Best time to visit: June – October
What is the weather like in Kastellorizo in May?
In May, Kastellorizo is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 20.4 °C – refreshing for a swim. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 5 days, adding up to 30 mm. All in all, May is an excellent month for a holiday in Kastellorizo.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 3 min05:56 – 19:59
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 27 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 35 %87 %
- Seaweight 25 %49 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %91 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Swimwear
- Sunscreen
- Sunglasses & sun hat
Kastellorizo in May: quick answers
Is Kastellorizo hot in May?
Warm rather than hot: in May, daytime highs in Kastellorizo average 24 °C and nights cool to about 18 °C.
Can you swim in Kastellorizo in May?
Yes. In May the sea averages 20.4 °C – refreshing for a swim.
Does it rain much in Kastellorizo in May?
Rain falls on about 5 days, adding up to 30 mm.
Kastellorizo month by month
The whole year in KastellorizoAll destinations: GreeceGreek Islands weather in MayWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences