September falls squarely within Costa Rica’s “green season,” also known as the rainy season. Characteristically, this period experiences significant rainfall, particularly in the afternoons and evenings. While mornings often dawn clear and sunny, expect a shift to wetter conditions later in the day. This pattern contributes to the country’s lush landscapes and vibrant biodiversity.
Understanding these climatic conditions is crucial for travelers planning a visit during this time. The green season offers advantages such as lower prices and fewer crowds compared to the dry season. The vibrant flora and fauna fueled by the rains create unique photographic opportunities. Historically, this period has been vital for agriculture and replenishing water resources, shaping the nation’s ecological balance. This knowledge enables visitors to pack appropriately, schedule activities strategically, and appreciate the unique beauty of Costa Rica during the green season.