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Cabo Rojo National Wildlife Refuge

Park

Coastal wildlife refuge in southwestern Puerto Rico protecting salt flats, mangroves and shorebird habitat near the Los Morrillos lighthouse. Birdwatchers and coastal walkers visit for shorebird viewing and short nature trails.

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Cabo Rojo National Wildlife Refuge essentials

Address: Boquerón Rd / PR-100 area, Cabo Rojo, Puerto Rico (visitor contact via USFWS Cabo Rojo office)
Website: fws.gov
Hours: Daily sunrise-sunset (visitor center hours vary)
Admission: Free

About Cabo Rojo National Wildlife Refuge

Cabo Rojo National Wildlife Refuge protects coastal wetlands, salt flats and associated habitats on the western tip of Puerto Rico near the town of Cabo Rojo. The refuge conserves habitat used by migratory shorebirds, resident seabirds and other coastal species.

The refuge includes saline lagoons and mangrove stands that support concentrations of wading birds and shorebirds, and it is managed for wildlife conservation and low-impact public uses such as birdwatching and nature study.

Located near the small towns and coastal communities of western Puerto Rico, the refuge sits along the island’s southwestern coastline and is accessed from the roadway network serving Cabo Rojo and adjacent tourist areas.

  • Birdwatching focus: Protects coastal salt-flat, mangrove and lagoon habitats that are important for migratory shorebirds and local wetland species, making it a core birdwatching area on Puerto Rico’s west coast.
When to Go

Best Time to Visit Cabo Rojo National Wildlife Refuge

Best visited for birdwatching and coastal nature year-round; crowds peak on holiday weekends.

Winter migration
December-February · 70-82°F (21-28°C)
Peak birding: shorebirds and wintering waterfowl concentrate on the salt flats and mangroves.
Spring nesting transition
March-May · 72-86°F (22-30°C)
Fewer crowds; some nesting activity in dunes and salt flats-watch for seasonal closures.
Dry season shorebird viewing
January-April · 70-85°F (21-29°C)
Lower rainfall makes mudflats more exposed and easier to scan.

Weather & Climate near Cabo Rojo National Wildlife Refuge

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 19°C to 33°C. Abundant rainfall (1038 mm/year), wettest in September.

Air Quality: AQI 32 Good
Temperature & Rainfall
Temperature Range
33°
Warmest Month
19°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 19° - 30° 24° 34 mm - - 4.3 m/s - -
February - 19° - 30° 24° 29 mm - - 4.5 m/s - -
March - 19° - 31° 25° 40 mm - - 4.6 m/s - -
April - 20° - 32° 26° 61 mm - - 4.4 m/s - -
May - 21° - 32° 27° 109 mm - - 4.2 m/s - -
June - 22° - 33° 28° 74 mm - - 4.4 m/s - -
July - 22° - 33° 28° 91 mm - - 4.7 m/s - -
August - 22° - 33° 28° 135 mm - - 4.3 m/s - -
September - 22° - 33° 28° 159 mm - - 3.8 m/s - -
October - 21° - 33° 27° 142 mm - - 3.5 m/s - -
November - 21° - 32° 26° 112 mm - - 3.9 m/s - -
December - 20° - 30° 25° 52 mm - - 4.2 m/s - -
Getting There & Around

How to Get to Cabo Rojo National Wildlife Refuge

The refuge lies on Puerto Rico’s southwest coast near Cabo Rojo pueblo. From PR-100/PR-301 in Cabo Rojo follow signs to Los Morrillos and the refuge; parking is available at main trailheads near the salt flats and the Boquerón area. The closest town center (Boquerón) is about a 10-15 minute drive; from Mayagüez airport it’s roughly 45-60 minutes by car.

Tips for Visiting Cabo Rojo National Wildlife Refuge

  • Arrive at dawn to see the salt flats and migratory shorebirds at their most active.
  • Bring binoculars and a scope if possible-endangered avocets and migrating plovers are often out on the flats.
  • Follow posted signs and stay on marked trails: many areas are fragile nesting habitat and are seasonally closed.