While much of the Mediterranean goes quiet in summer, the Aegean does the opposite. From roughly mid-June to mid-September a dry northerly wind called the Meltemi sweeps down across the islands, and Greece turns into one of the most dependable warm-water kite destinations anywhere.
How the Meltemi works
The Meltemi is a seasonal etesian wind, driven by a pressure gradient between high pressure over the Balkans and low pressure over Turkey and Asia. It blows from the north to northeast, and as it accelerates through the channels between the islands and is reinforced by daytime heating, it can hold 25 to 40 knots for days at a time. July and August are the peak: the most reliable, the strongest, and occasionally more than you bargained for. June and September are gentler shoulders, still very rideable, with smaller crowds.
Because it is a steady thermal-and-pressure system rather than a passing front, the Meltemi has a rhythm: it often builds through the morning, peaks in the afternoon, and eases overnight.
Where to ride
The Cyclades are the classic Meltemi islands. Mikri Vigla on Naxos is the all-rounder, with a flat-water lagoon on one side of the headland and a bump-and-jump bay on the other. Pounda on Paros sits right in the channel that funnels the wind, making it one of the most consistent spots in the country.
The Dodecanese deliver the heavy artillery. Afiartis on Karpathos is among the windiest spots in Europe and a long-time competition venue, while Prasonisi on Rhodes is the postcard: a sandy isthmus with a flat lagoon on one side and waves on the other. Marmari on Kos is the friendlier, more beginner-suited corner of the region.
Beyond the famous names, Kouremenos catches reliable wind on the east coast of Crete, and Keros on Limnos is a flat-water gem in the north Aegean.
The exception: Vasiliki
Not everything in Greece runs on the Meltemi. Vasiliki on the Ionian island of Lefkada is powered by a remarkably consistent afternoon thermal that funnels into the bay almost every summer day: cross-shore, building from light in the morning to a solid breeze by mid-afternoon. It is one of the best places in Europe to learn and to windsurf.
Before you book
The water is warm: a shorty or just boardshorts for most of the season. The famous spots get busy in peak summer, and a few are side-to-offshore, so check that there is boat cover and ride within your level. Most of all, pick your island for the wind you want: the Cyclades and Dodecanese for full-power Meltemi, Vasiliki for a mellower thermal. Then watch the live forecast: the Meltemi is famously consistent, but the strength swings hard from day to day.