Aegean Region in March

May through October offers warm weather and calm seas, but timing matters for your priorities. May and September-October deliver perfect temperatures (22-26°C) without the crowds that descend in July-August. June hits the sweet spot for most travelers — warm enough for swimming, but hotels still offer reasonable rates. July and August bring intense heat (often 35°C+) and packed beaches, though the nightlife scene peaks during these months. October extends the season beautifully with 24°C days and fewer tourists, making it ideal for exploring ruins without melting. Winter brings rain and closed seaside restaurants, though Izmir stays lively year-round.