The gravel road currently has a large number of potholes and becomes very difficult to drive during the rainy season, affecting tourism, local business owners say.
The National Meteorological Institute forecasts continued rains for the Caribbean and northern regions, and precipitation in the Pacific region, including Guanacaste. Currently 1,630 people forced to leave their homes by flooding and landslides are being housed in 17 shelters.
Tuesday evening's closure of Route 32 from San José to Costa Rica's Caribbean coast makes the fourth time since June that authorities have closed the route due to heavy rains and landslides.
Several communities in the northwestern province of Guanacaste registered rainfall levels below 1 centimeter (0.4 inches) in May, the National Meteorological Institute reported. Drought conditions are expected to hit the province again starting next week.
The National Meteorological Institute predicts heavy showers and thunderstorms will continue throughout the week in the Caribbean region and the Central Valley.
Despite a significant decrease in rainfall on Monday, the National Emergency Commission said it will maintain a green alert for the Caribbean and Northern zones, two of Costa Rica's regions most affected by heavy rains last week.
Increased rainfall in the early hours on Thursday prompted the National Emergency Commission (CNE) to declare a green, or preventive, alert for those two regions for the second time this month.
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