Some 1,600 residents of northeastern Costa Rica are remaining in shelters until they see a break in the weather.
A tropical wave, a trough of low pressure, passed over the country Wednesday and brought more rain to the northern zone and the Caribbean where there has been at least three periods of flooding since mid-June.
The Instituto Meteorológico Nacional said it expected more rain overnight and through today. The Ríos Chirripó and Reventazón were reported rising again.
The national emergency commission said there were about 1,600 persons in 14 shelters Wednesday, mainly in Matina, Siquírres, Sarapiquí, Limón and Turrialba.
Most planned to stay for at least another night while the weather stabilizes.
More landslides closed Ruta 32 early in the day, but they were expected to be cleared.
The Cruz Roja said it rescued 36 trapped persons over the last few days. Cruz Roja crews were busy bringing mattresses, water, diapers and other necessities to residents in flooded areas.