There are two seasons in Costa Rica; dry season, ranging from December to April, and rainy season, ranging from May to November.
The dry season also means the high season in Costa Rica, as the country sees almost no rain from December to April. During this time, beach spots and eco-tourism packages are at full burst. It is advisable to book as early as possible for this season if you don’t want to find yourself out of vacancies and get the best deals. If you don’t mind the crowd, this is the best time to go.