For a small country, Costa Rica experiences a surprising range of climatic conditions. Low temperatures affect the highlands, the cloud forest is cool with clouds of mist, the Central Valley is blessed with year-round spring-like conditions whilst the coastal regions are hot and steamy throughout the year. The dry season from December to April is generally the best time to visit with far less rain throughout the Central Valley region.
The weather chart shows the average daily min and max temperatures in Celsuis and the average monthly precipitation.
Costa Rica enjoys a mainly tropical climate year round and the country can really be divided into two seasons. Verano (Autumn) and Invierno (Winter). Verano lasts from December to May and is the driest time of year. Invierno is May to November and sees a lot of the rainfall. In some places it rains constantly. The middle slopes (northeast) of the Central Cordillera mountains see the lion’s share of the rainfall with over 5000mm falling annually. There tends to be more humidity on the Caribbean side of the country rather than the Pacific.