What is this? Most Croatia travelers come to visit the Dalmatian coast in southern Croatia — including places like Dubrovnik, Hvar, and Split. This is the warmest and sunniest part of Croatia with a long summer season that runs from late May to early October.

The Southern Dalmatia region, specifically the area around Dubrovnik and the island of Hvar, is consistently the warmest part of Croatia. Hvar is officially recognized as the "sunniest spot" in the country, boasting over 2,700 hours of sunlight per year. Because this region is further south and protected by the Dinaric Alps, it experiences a true Mediterranean climate with hot, dry summers and very mild winters. While northern areas like Istria or the interior around Zagreb can see significant temperature drops and even snow in winter, Dubrovnik stays relatively temperate, with winter highs rarely dropping below 10°C (50°F). For travelers seeking the warmest sea temperatures for swimming, the sheltered bays of the southern islands like Korčula and Vis stay warm well into October, making Southern Dalmatia the ideal choice for sun-seekers throughout the year.