In June, Cyprus has consistently warm weather:
— air temperature around 25–30°C
— water temperature ~22–25°C
— long, sunny days
It’s one of the most comfortable periods for kitesurfing: warm, but without extreme heat, and with fairly stable wind conditions.
A wetsuit is usually not necessary, but a light shorty or a thin wetsuit can be more comfortable on windy days or during longer sessions on the water.