According to the seasons…

Climates

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.

Precipitation and temperatures by region

Best seasons for species observation

Below are the best times to observe marine species in Costa Rica.

Some species are present year-round, such as dolphins on the Pacific coast from north to south, and to a lesser extent on the Caribbean coast.

In Tortuguero, manatees, an endangered species, are still present, but you’ll have little chance of spotting them as they are so shy.

If you’re on this page, it’s probably because 850 species of bird are attracting your attention. Costa Rica has become a benchmark for ornithology. In January and February, the country welcomes migrants from the north, and in September and October those from the south.

Toucans

You can see toucans all year round in Tortuguero, Sarapiqui, Arenal, Tenorio, Monteverde, the Caribbean coast, the Pacific coast and especially in the south, on the Osa peninsula.

Macao macaws

You’ll have the chance to observe Macaws all year round, particularly on the Central Pacific and the Osa Peninsula. The Nicoya Peninsula also benefits from a number of successful reintroduction projects.

Here are Costa Rica’s emblematic birds. The best periods for birdwatching are the nesting periods shown in color in the table.