May in Costa Rica represents a transitional period between the dry season and the “green season” (also known as the rainy season). Characteristically, this month experiences increasing rainfall, particularly in the afternoons and evenings, while mornings often remain sunny. Temperatures typically range from the mid-70s to the mid-80s Fahrenheit (low to mid-20s Celsius) in coastal areas and slightly cooler in higher elevations. Humidity also begins to rise in May.
Understanding Costa Rica’s climate in May is crucial for travelers planning trips during this month. This transitional period offers a unique blend of sunshine and rainfall, fostering lush landscapes and vibrant ecosystems. While afternoon showers can be expected, they often provide a refreshing respite from the heat and contribute to the country’s renowned biodiversity. This timeframe can also offer potential cost savings on travel and accommodations compared to the peak dry season.