May marks the transition from Costa Rica’s dry season to its green season. Characteristically, this period experiences a shift in precipitation patterns across different regions. The Pacific coast typically sees sunny mornings followed by afternoon showers, while the Caribbean coast experiences more consistent rainfall throughout the day. Temperatures remain warm, generally ranging from the mid-70s to the high 80s Fahrenheit (mid-20s to low 30s Celsius). Humidity levels also begin to rise.
This transitional month offers unique advantages. The landscapes are lush and vibrant due to the increasing rainfall, creating stunning scenery. The period often sees fewer tourists compared to the peak dry season, offering potential cost savings and a more tranquil experience. Additionally, May presents opportunities for observing unique wildlife as the changing weather patterns influence animal behavior and breeding cycles. Historically, this time signified the start of renewed agricultural activity for local communities, connected to the life-giving rains.