Costa Rica 7-Day Weather Forecast: May 8 to May 14, 2025

General Weather Overview

As the rainy season continues to establish itself across the country, we should be prepared for afternoon showers and storms, especially along the Pacific coast. The upcoming tropical wave (learn about tropical waves) early next week may cause more significant precipitation, so plan your outdoor activities and longer drives for the morning, whenever possible.

Forecast

According to Costa Rica’s IMN (Instituto Meteorológico Nacional), humid conditions with typical rainy season showers will continue across the Pacific and Central Valley regions, with a slight decrease in instability expected Friday and Saturday.

From Sunday into next week, atmospheric instability will increase again due to two primary factors: the already present Intertropical Convergence Zone (ITCZ) bringing variable rainfall, and the arrival of a tropical wave projected for Monday through Tuesday. This combination will intensify rainfall events in the Pacific and increase precipitation likelihood in parts of the Caribbean and Northern Zone 🌧️.

Residents of northern Guanacaste should prepare for moderate easterly winds in the mountainous areas, which are expected to continue into next week.

What to Expect Daily

Mornings

• Pacific & Central Valley: Few to partly cloudy conditions
• Caribbean & Northern Zone: Increasing chance of isolated to scattered showers and rain from today through early next week

Afternoons

• Pacific & Central Valley: Mostly cloudy with rain and occasional thunderstorms on Friday and Saturday; intensifying showers early next week
• Caribbean: Increasing cloudiness with possible showers and occasional downpours, particularly in western areas and across mountains.
• All Regions: More widespread precipitation from coasts to inland areas expected next week

Nights

• Pacific: Cloudy to partly cloudy with possible showers and rain in western slopes and coastal areas, becoming more isolated next week.
• Caribbean & Northern Zone: Partly cloudy with occasional showers

Regional Temperature Outlook