The best month to go to Croatia depends on your preferences and interests! The tourist season runs from June to August when the weather is hot and sunny. But this period can be crowded, and prices can be higher. In the shoulder season months of May and September, the weather is still warm and sunny, but there are fewer tourists and prices may be slightly lower. April and May, and September and October are the best time for outdoor activities, such as hiking, cycling, and water sports.