Costa Rica is located between 8 and 12 degrees north of the equator, so the climate is tropical all year round. However, the country has many microclimates depending on the altitude, rainfall, topography and geography of each region.
Costa Rica’s seasons are defined by the amount of rain that falls in a given period, rather than the four seasons to which temperate inhabitants are accustomed. The year can be divided into two periods, the dry season, which locals refer to as summer, and the rainy season, locally known as winter. The “summer” or dry season runs from December to April, and the “winter” or rainy season runs from May to November, which almost coincides with the list of Atlantic hurricane seasons, and during this time it rains constantly in some areas.
The place that receives the most rain is the Caribbean side of the Cordillera Central, with annual rainfall of over 5,000 mm. Humidity is also higher on the Caribbean side than on the Pacific side. The average annual temperature is about 27°C in the coastal plains, 20°C in the main settlement areas of the Cordillera Central and less than 10°C on the highest mountain peaks.