The best time to visit Croatia is in May and June or September and October when the weather is pleasant and sunny. This makes it ideal for swimming and sunbathing. It is also less crowded at these times than in the summer months of July and August which are high season and can be very hot, especially in the afternoon.

In 2026, the ideal time to visit Croatia is during the shoulder seasons of May–June and September–October. During these months, the weather is warm enough for swimming in the Adriatic—with temperatures typically ranging from 20°C to 25°C—but the overwhelming crowds of the July and August peak season are absent. Visiting in the shoulder season also offers significantly lower prices for boutique hotels and "island-hopping" ferries. If you are specifically looking for festivals and a vibrant nightlife, July and August are the peak, but be prepared for intense heat and cruise ship crowds in Dubrovnik and Split. For those interested in hiking at Plitvice Lakes or Krka National Park, autumn is spectacular due to the changing foliage and higher water levels in the falls. Winter (November–March) is very quiet and cold along the coast, though Zagreb becomes a major destination in December for its award-winning Advent markets, which are consistently ranked among the best in Europe.