May represents a transitional period in Costa Rica, bridging the dry season and the verdant “green season.” Characteristically, this month sees a noticeable increase in rainfall across most of the country, especially in the afternoons and evenings. Pacific coastal regions experience slightly different patterns compared to the Caribbean side, with generally drier conditions prevailing in Guanacaste and the Nicoya Peninsula. Temperatures remain consistently warm, typically in the mid-80s Fahrenheit (around 30 degrees Celsius) during the day and slightly cooler at night.
Understanding the typical climate conditions of this specific period is crucial for travelers planning a visit. While rain showers become more frequent, they often occur in short, intense bursts, leaving ample sunshine throughout the day. This period offers advantages such as lusher landscapes, fewer crowds compared to peak dry season, and potentially lower prices on accommodations and tours. Furthermore, the increased rainfall rejuvenates the country’s famed biodiversity, making it an excellent time for observing flora and fauna. Historically, this transitional month has marked the start of the agricultural cycle for many local communities, deeply intertwined with Costa Rican culture and tradition.
