The best time to visit Kolan, Zadar, Croatia, is during the shoulder seasons of May, June, September, and early October.These months offer pleasant weather, ideal for exploring the island and enjoying its beaches, without the peak summer crowds. You'll find warm temperatures great for swimming and sunbathing, along with a more relaxed atmosphere in restaurants and attractions.For those looking for the warmest sea temperatures and the most lively option, July and August are excellent choices. During these months, all tourist facilities are fully operational, and there are numerous events and festivals.