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. However, mornings often begin with sunshine, offering a mix of weather conditions throughout the day. Regional variations exist; the Caribbean coast tends to receive more consistent rainfall while the Pacific coast experiences more defined periods of sunshine. This season contributes significantly to the country’s lush landscapes and vibrant biodiversity.
Understanding the climatic conditions prevalent during this month is crucial for travelers planning visits. The green season offers advantages such as lower prices on accommodations and tours, fewer crowds, and the opportunity to witness the rainforest in its full, vibrant glory. Historically, this period has been integral to Costa Rica’s agricultural cycles, supporting the growth of its diverse flora and fauna. This time of year also offers unique opportunities for adventure activities like whitewater rafting due to increased river flows.
