Weather in Costa Rica for May 2025

In May, Costa Rica experiences a transition from the dry season to the beginning of the rainy season. At the start of the month, the weather in Costa Rica is generally warm and sunny, with average temperatures ranging from 25° to 30°.

The Pacific coast and central regions tend to be drier and hotter, while the Caribbean coast may experience more rainfall.

As the month progresses, the weather becomes increasingly humid and the likelihood of rain showers rises. By the end of May, the average temperatures range from 24° to 28°, and the country begins to see more frequent afternoon showers and thunderstorms, especially in the afternoons and evenings.

The central valley and Pacific coast may still enjoy some sunny days, but the Caribbean coast and northern regions are likely to experience more consistent rainfall.

Overall, May in Costa Rica offers a mix of warm, sunny days and increasing rainfall, making it a transitional period between the dry and rainy seasons. Travelers should be prepared for changing weather conditions and pack accordingly for both sun and rain.

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