The best time to go to Rethymno is during the shoulder seasons of May, June, September, and early October.These months offer pleasant weather, with warm temperatures superb for exploring or relaxing on the beach, but without the intense heat and larger crowds of the peak summer months. You'll find that most attractions, restaurants, and shops are fully open, providing a complete experience. The sea is also warm enough for swimming during this period.For those looking for a quieter experience, May and early June are particularly good. The wild flowers are often in bloom, and the town feels fresh after the winter. You'll have more space on the beaches and in the Old Town's narrow streets.If you prefer a slightly livelier atmosphere but still want to avoid the busiest period, September and early October are excellent. The sea remains warm, and the evenings are still mild, superb for dining outdoors.