Costa Rica is a tropical country with pleasant temperatures all year. The country average temperature is 22 Celsius (72 Fahrenheit), with coastal temperatures of up to 27 Celsius (81 Fahrenheit) and high altitude temperatures that reach 15 Celsius (57 Fahrenheit). Costa Rica has two distinct seasons: the dry season which runs from December to April and the rainy season which runs from May to November. During the rainy season you can expect sunny mornings and rainy afternoons.