Costa Rica Weather, climate and geography

Located around 10° north of the Equator, Costa Rica enjoys a tropical climate year-round.

Costa Rica’s Pacific coast

Divided into North Pacific, Central Pacific and South Pacific regions, this long stretch of coastline attracts many visitors to its sandy beaches and secluded coves. December to March is the best time to visit Costa Rica's Pacific coast, particularly the northern and central parts, as this is the dry season with the most sunshine. As you move further south, the dry season becomes less defined. In other words, there are rainy days even during the dry season.

May to October is the wet season along the Pacific Coast, so expect hot and humid weather, which can be uncomfortable to some travellers. April is generally the warmest month, while December is the coolest month.

In the coastal town of Puntarenas on the Gulf of Nicoya, the average high ranges from 27-29°C (81-84°F) year-round except in April, when the mercury often climbs above 30°C (86°F).

The Osa Peninsula (Peninsula de Osa) on Costa Rica's South Pacific Coast has an average high of 28°C (82°F) throughout the year.

The central valley and San José

Spanning from San Ramón (Alajuela province) in the west to Paraíso (Cartago province) in the east, Costa Rica's central valley is the setting for the country's capital, San José. Sitting at 1,172m (3,845ft) above sea level, San José has a tropical climate with warm days and cool nights. The best time to visit San José is from January to March when the weather is warm and has little rain. The rain starts from May and lasts till October, with September being the wettest month. April is usually the warmest month with an average high of 30°C (86°F) and an average low is 19°C (66°F).

Costa Rica's Caribbean coast

Stretching from Barra del Colorado in the north to Sixaola in the south, Costa Rica's Caribbean coast receives heavy rainfall throughout the year with no distinct dry season. Hurricanes may also affect the Caribbean coast, especially in October and November.

February, March and September are widely considered to be the best time to visit Costa Rica's Caribbean coast – these are the 'dryer' months, although you may still get fourteen to seventeen rainy days in a month.

Limón, or Puerto Limón, is the largest city on the Caribbean coast. It has a tropical rainforest climate with an average high of 30°C (86°F) year-round. In other words, it is hot and humid.