It enjoys a tropical climate with warm temperatures year-round. The average temperature ranges from 75°F (24°C) in the winter months to 85°F (29°C) during the summer. The region experiences a rainy season from May to October, with the highest precipitation levels occurring in August.
The hydrology constituents of Humacao include several rivers and lagoons. One of the most prominent is the Humacao River, which runs through the municipality and offers opportunities for kayaking, fishing, and wildlife observation. The nearby Punta Santiago Lagoon is another popular spot for activities like boating and birdwatching.
In terms of outdoor recreation, Humacao offers a variety of options. Visitors can explore the beautiful beaches that line its coast, such as Palmas del Mar Beach and Punta Santiago Beach, which are perfect for swimming, snorkeling, and sunbathing. The area is also known for its golf courses, hiking trails, and nature reserves, such as the Humacao Nature Reserve, where visitors can immerse themselves in the lush tropical forests and observe diverse flora and fauna.
Overall, Humacao offers a tropical paradise with its favorable climate, stunning hydrological features, and abundant outdoor recreational opportunities.
Humacao receives approximately mm of rain per year, with humidity levels near 78% and air temperatures averaging around °C. Humacao has a plant hardyness factor of , meaning plants and agriculture in this region thrive during a short period during spring and early summer. Most plants will die off during the colder winter months.