Costa Rica’s seasons are far removed from those of the United States and Europe. When you ask a Tico what it’s like, he’ll tell you: the dry season and the green season. What’s more, the country is also subject to different climates, which is why we’ll refer to them in the plural. Indeed, although the country is relatively small (51,000 km2), it is nonetheless a land of contrasts. Costa Rica has a diverse and varied climate that can be divided into several climatic zones, each of which is different and individual. The main reason for these variations is that the country is situated between 2 oceans that are very close to each other. Added to this is a central mountain range that rises to over 3,820 m. The stage is set.
Regions rather than seasons
It would be a lie to describe Costa Rica’s climate month by month. When the weather is fine in the west, it can be a deluge in the east, and vice versa. From December to April, the entire Pacific coast enjoys a warm, dry climate, while the Caribbean is subject to heavy rainfall. From May to October, the Caribbean is sunnier, while the South Pacific is wetter, mainly in September and October.
However, the good news is that most of Costa Rica’s sights and attractions can be enjoyed all year round, depending on your interests. If you’ve come to see the active and abundant wildlife, the period from May to August is the most favorable. If you prefer very warm days and bask in the sun, the season from December to April will enchant you.
Here’s a table showing the main regional differences in rainfall and sunshine. Never lose sight of one important point: humidity = coolness = active, present animals. Basically, rain is part of the country and its richness. A nice tropical downpour at the end of the day has the merit of allowing you to sleep in the cool.