For most travelers, the best time to visit Trpanj is during the shoulder seasons of May, early June, or September.These months offer pleasant weather, with warm temperatures ideal for swimming and outdoor activities, but without the intense heat and larger crowds of July and August. You'll find the water warm enough for comfortable swimming and the local establishments fully operational. This period is particularly good for couples seeking a relaxed yet engaging coastal experience.July and August are also popular, especially for families, as this is when the sea is warmest and all activities, from boat excursions to local festivals, are in full swing. While it's the busiest time, Trpanj manages to retain a more laid-back feel compared to larger resorts. However, be prepared for higher temperatures and more visitors during these peak summer months.