The best time of year to visit Croatia depends on your reasons for traveling, your preferences for things like weather, and your budget.
If you care about warm temperatures, the best time to go is from mid-spring to mid-autumn. The weather will be pleasant in the shoulder seasons and hot in the summer.
Croatia has a Mediterranean climate of cool, mild winters and hot summers. Most people visiting Croatia plan to do some traveling along the coast, including water sports, sailing, adventure sports, or sunbathing. As such, the best time of year to visit Croatia is in the warm months from mid-April to the end of September.
Summer is the peak season for tourism in Croatia, so if you want to avoid the crowds but still have good weather, consider booking your holiday to Croatia in May or September.
You can also find better deals on hotels, flights, and tour packages during the off-peak season, which makes it one of the best times of year to visit Croatia for those traveling on a budget.