Does a Hurricane Wash the Sargassum Away? Not the Way We Think
Every time a storm shows up on the Quintana Roo map, people on the beach ask the same question: is it going to clear out the sargassum?
The short answer is yes, for two days. Then it brings it back.
I have watched it happen for more than 15 years protecting hotels from Cancún to Tulum. People think the hurricane carries the seaweed out of the sea. It doesn't. What it does is churn up the beach.
The big waves rip out the sargassum that was already on the sand and throw it offshore. For a moment the beach looks clean. Very clean. But that seaweed doesn't disappear. It keeps floating out there, millions of tons of it. And because sargassum breaks into small pieces and every piece keeps growing, in the end there are more small mats, not fewer.
Then comes the second part, the one almost nobody talks about. After the storm passes, the wind shifts. And the wind that comes around the back of the system blows straight at our coast, from the east and southeast. That is the same wind that brings us sargassum every year. So four or five days later, the sea gives it all back, and sometimes more.
We saw it very clearly with Beryl in 2024. It made landfall at Tulum as a Category 2. It did little damage to the hotels. But two days later, beaches like Playa del Niño in Cancún woke up completely covered in sargassum. Fellow hoteliers had to bring in crews from 18 hotels to clean up before the summer tourists arrived. It wasn't the storm. It was the wind that came after it.
In 2020 it went the other way. That hurricane season was so active and moved the currents so much that our beaches in Playa del Carmen stayed clean from October to March. People thought sargassum was over. In May 2021, it came back in full force.
That is why I always tell hotel managers: don't look at sargassum as just a cleaning problem. See it for what it is, an operations problem.
When sargassum hits hard, it is as if someone closed your main pool. It isn't just picking up seaweed. It is the rotten-egg smell that lingers, that stings your throat and keeps your staff from cleaning eight hours straight. It is the guest who cancels, who won't go in the sea, who posts the photo on TripAdvisor.
There is no magic wand that takes sargassum out of the ocean. What we can control is how we prepare beforehand.
In the Riviera Maya we have an advantage: our coast faces east, so we already know which winds bring it. East or southeast wind = the sargassum is coming. West or southwest wind = the beach gets better. With just 10 to 15 knots — an ordinary breeze — a beach can go from clean to covered in a single day.
If we know that, we can plan. Where are we going to put the barrier? Where will the crew work? What are we going to offer guests on a day they can't swim? Sometimes the answer is the pool, sometimes a cenote, sometimes taking them to the west side of Cozumel, which is always sheltered.
We can't control a hurricane. We can't control sargassum either. But we can control whether we wait for it with a plan or wait for it improvising.
And on this coast, improvising always ends up costing more.