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Sargassum at Balneario de Patillas: today's conditions

Today, September 1

First bulletin for this beach lands with tomorrow morning’s update.

Balneario de Patillas is the public beach of Patillas, on the south coast of Puerto Rico, roughly halfway between the Maunabo headland and the bay at Arroyo. You will find sargassum at Balneario de Patillas tracked day by day here: what the shore shows this morning, a single 0 to 5 rating, and a map of the coast around it.

The reading is republished every morning, which leaves room to change plans. Clear sand, scattered weed along the tideline, or a thick mat: the information reaches you before the car is loaded.

Balneario de Patillas on the sargassum map

What to know about this beach

Patillas faces the Caribbean Sea and its shoreline looks southwest. Along this stretch of coast that is the least exposed aspect available: the trade winds blow from the east, roughly parallel to the shore, pushing drift along the coastline rather than into it. A raft often travels past offshore without ever touching the sand.

The shelter is not absolute. The Caribbean current runs east to west, so anything that has cleared the Maunabo point keeps moving past Patillas, and a shift of wind to the south is enough to send part of it into the cove. Calm water on this side also means less flushing, so weed that does settle can stay put.

Frequently asked questions

Is Balneario de Patillas less affected than the east coast?

Generally yes. Its southwest opening does not face the trade winds, which run along the south coast instead of into it, so arrivals here are more irregular than at Yabucoa or Humacao.

How do I check the beach before driving to Patillas?

The morning rating, 0 to 5, is published here with a map of the island's southeast. You see the state recorded at this balneario and can compare it with Arroyo before setting off.

When should I expect sargassum on the south coast?

The sensitive stretch runs from spring to late summer, as elsewhere in the Caribbean, but here it shows up as shorter, more widely spaced episodes than on the Atlantic side.

Does a southerly wind change things at Patillas?

Yes. When the wind swings south or southwest it pushes whatever was drifting offshore toward the beach, and an aspect that is normally sheltered can take a landing within hours.

Nearby beaches

All Puerto Rico beaches

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Methodology & transparency — FanGass is a free service published by the Katchak agency and created by Morgan Haillus. Every morning, each beach’s 0-to-5 score is recomputed by cross-checking official bulletins (Météo-France, NOAA, University of South Florida), satellite imagery of the offshore rafts, and on-the-ground user reports.