Rainy Season In The Central Valley To Begin May 11 – 15


Time to prepare for the oncoming rainy season, a season that according to the experts at the Instituto Meteorológico Nacional (IMN) – national weather service – is expected to commence in the Central Valley between May 11 and 15.

Remember to sing in the rain in Costa Rica. Photo from Blueosa.com

Daniel Poleo, an IMN meteorologist, explained that the models indicate that the rainy season will begin in the North Pacific (Guanacaste) on the same dates.

In the case of the Central Pacific (Puntarenas, Jaco, Quepos/Manuel Antonio), the rains are expected to begin between April 26 and 30, while in the South Pacific the season is on.


Poleo indicated that the start of the season will have normal conditions, that is, usually warm mornings and rainy afternoons. Typically the hotter the morning, the more intense the afternoon rains.

Between July and September, a slight decrease in the distribution of rainfall in the Pacific and Central Valley is expected, with the typical break for a couple of weeks during July, coinciding with the mid-year school break.

Please remember to slow down while driving in the rain

Costa Rica has two distinct seasons: dry and wet. The dry season, considered summer by Costa Ricans, is from mid-November to April, the other months wet or rainy season, called winter by. The Tourism Board prefers to call the rainy months the “green” season.

Even in the rainy season, days often start sunny, with rain falling in the afternoon and evening. September and October are the heaviest rain period, with a large percentage of the season’s rainfall occurring in those two months alone.