We would say that any time is the best time! But as a tropical country, Costa Rica experiences two seasons, the dry and the rainy season. Both of them have pros and cons.
The dry season is from mid-December to May (also high season). This peak tourist season boasts plenty of sunshine making it an ideal time for exploring rainforests and lounging on beaches. That said, the dry season is the most popular (and expensive) time to visit.
The rainy season generally goes from June to mid-December when frequent rains make for greener landscapes. Prices are lower, but some people don´t like to travel with some rain.
During June, July, November and December is what we called transitional season…Our favorite if we would have to choose! Rain showers pause briefly, and Costa Rica’s forests burst with green foliage.
While planning your trip, keep in mind that the weather varies by region. In the thick rain forests of the Caribbean coast and the tropical central Pacific coast, expect high humidity and temperatures ranging between the 70s and high 80s year-round. Conversely, in the North Pacific, prepare for lower humidity levels, but temperatures that often soar into the 90s during Costa Rica’s dry months.
Cloud Forest temperatures varies between 66s and 79s during wet season and reach up to 80s in dry season.