The Party Peak
If your goal is to experience the world-famous beach clubs (Scorpios, Nammos) and see top-tier DJs, July and August are the only time. This is when the island is operating at 100% energy. Be prepared for peak pricing.
The "Smart" Season
For those who want the beauty of the Chora, the shopping, and the dining without the chaos, late September and early October are the insider's choice. The water is at its warmest, the "closing parties" offer great energy, and the crowds dissipate.
Gateway to Delos
Mykonos is the staging ground for visiting the sacred island of Delos. Spring (April/May) is the best time for this, as the archaeological site has no shade and is brutal in the summer heat.