The best time to visit Astypalaia is during the shoulder seasons of May, June, September, and early October.During these months, you'll find the weather pleasantly warm and sunny, ideal for exploring the island's many beaches and the Chora. The sea is warm enough for swimming, and the island isn't as crowded as it can be in the peak summer months. This makes it superb for couples seeking a peaceful, romantic getaway without the intense heat or bustling crowds.July and August are also popular, offering the warmest weather and a more lively option with all businesses fully open. This period is great for families with school-aged children, as the sea is at its warmest and there are more organised activities and boat trips available. However, be prepared for higher prices and more people, especially at popular spots.