Weather experts say that the influence of the weather system that brought heavy rain to Guanacaste, the northern zone and the Caribbean will become less today.
The system of low pressure is between El Salvador and Nicaragua.
There was rain in the Central Valley Sunday night. The Instituto Meteorológico Nacional said that the rios Yorkin, Telire, Sixaola, Pacuare and Sarapiquí were rising.
The agency issued a special bulletin at 7:30 p.m. Sunday. It said that continued downpours in Guanacaste and the northern zone would diminish by early morning.