The best time to go to Son Castello is during the shoulder seasons of May, early June, September, and early October. These months offer pleasant weather, fewer crowds, and good value.During May and early June, the weather is warm and sunny, great for enjoying the beaches and outdoor activities without the peak summer heat. The island's natural beauty is at its peak with lush landscapes. This period is ideal for couples looking for a relaxed holiday with comfortable temperatures for exploring.September and early October also provide excellent conditions. The sea remains warm enough for swimming, and the summer crowds have dispersed, making popular attractions more accessible.