Puerto Rico
Weather locations in Puerto Rico
Choose a location in Puerto Rico to view its available forecast products.
Puerto Rico illustrated weather map
1 mapped locations
Only locations with a verified coordinate are marked. The complete location list is below.
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Climate of Puerto Rico
Country climate guidePuerto Rico is a small Caribbean island about 170 km long, sitting between the Atlantic and the Caribbean Sea at roughly 18°N. It has no mountains high enough to give it a cold climate, but the Cordillera Central does enough to divide the island into a wet interior and two very different coasts. As with the rest of the northern Caribbean, the year splits into a dry season and a wet season rather than into hot and cold halves, and the trade winds provide a constant breeze.
Main climate types
The coasts carry a tropical savanna climate with a marked dry season, while high ground and the slopes that face the rain carry a tropical rainforest climate. The east, including El Yunque in the Sierra de Luquillo, receives the most rain because the trade winds are forced up over the mountains, whereas the south-west around Cabo Rojo lies in the rain shadow and is the driest part of the island.
Temperatures
Temperatures are warm all year with only a few degrees between the hottest and coldest month. San Juan averages about 24 °C in January and about 27 °C in July, with daytime highs commonly near 29 °C to 31 °C. In the mountains, the temperature drops by roughly 5 °C to 8 °C compared with the coast, and nights inside the Cordillera Central can be genuinely cool, even brisk, in the dry season.
Rainfall
Annual rainfall runs from about 650 mm to 800 mm on the driest south-west corner to more than 4,000 mm, and in wettest years above 5,000 mm, on the eastern slopes of El Yunque. The dry season runs from about December to April and the rains from May to November, with the wettest weather usually in late summer. Most rain falls as short, intense showers in the late afternoon, and sea temperatures stay above 25 °C all year.
When to go
The dry months from January to April have the most sunshine and the calmest sea, which suits the beaches and the reef at Cayo Santiago. Hurricane and tropical storm activity runs from June to November, with the highest risk in September, and this can close airports and shorten stays.