September falls within Costa Rica’s “green season,” also known as the rainy season. Characteristically, this period experiences heavy rainfall, particularly in the afternoons and evenings, interspersed with periods of sunshine. This combination creates lush, vibrant landscapes and often lower prices for accommodations and tours.
Understanding the climatic conditions prevalent during this month is crucial for travelers. While the rain contributes to the country’s stunning biodiversity, it can also impact travel plans. Being prepared for both sun and rain allows visitors to fully experience the unique beauty of Costa Rica during the green season, often encountering fewer crowds and enjoying a more intimate connection with nature. This time of year also offers excellent opportunities for whitewater rafting and birdwatching, as rivers swell and migratory birds arrive.