Costa Rica benefits from a perfect tropical, never-ending-spring climate. The average temperature is 70°F (around 21°C) in the highlands. Lowland temperatures range from the high 70’s to the low 90’s (21 to 28°C). The rainy season goes from May to November, whilst the dry season lasts from December to April.

However, consider that even during the rainy season mornings are, more often than not, bright and sunny; expect as well occasional showers during the dry season.

Temperatures vary little between seasons; the main influence on temperature is altitude. Pack rain gear with you, as well as light sweaters or jackets for mountainous sites such as Monteverde or the Savegre Valley. Also do not forget humidity (in some regions, like in the Caribbean or in Sarapiquí, it can reach 90%). Hydration is important in the area, since you will surely sweat!

National Meteorological Institute: www.imn.ac.cr