VeabirdBeach

Cancún & Isla Mujeres sargassum & beach forecast

Mexico · 86 beaches and resorts

Veabird grades 86 beaches and resorts in Cancún & Isla Mujeres, Mexico, every six hours on seaweed, water, waves, weather and crowds, including 2 area pages covering a whole stretch of beach. The most are in Cancún, Playa Mujeres and Isla Mujeres. On a typical beach here, sargassum risk is moderate or higher from April to October, peaks in June and July and is lowest in January and December. It varies by beach: Kempinski Hotel Cancún has the highest typical risk and Hotel Villa Rolandi the lowest. Across the region, average highs run from about 83°F in January to 92°F in July and August, and the sea from about 79°F to 86°F. Rain is most likely in September and October and least likely in April.

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This week, beach by beach

Cancún

Playa Mujeres

Isla Mujeres

Costa Mujeres

Holbox

Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.

Weather, water & seaweed by month

MonthAvg highSeaChance of rainSargassum
Jan83°F79°F23%Low
Feb84°F79°F16%Low
Mar86°F79°F13%Low
Apr88°F81°F10%Moderate
May90°F82°F20%High
Jun91°F84°F37%High
Jul92°F84°F30%High
Aug92°F86°F33%High
Sep91°F86°F45%Moderate
Oct89°F84°F45%Moderate
Nov86°F82°F33%Low
Dec84°F81°F27%Low

Regional monthly averages from Veabird's climate table for Cancún & Isla Mujeres; resort pages add their own spot's numbers where available. Sargassum is the typical-year risk on the median beach here.

Seaweed cleanup & barriers

Offshore barriers
Floating sargassum barriers deployed by Mexican Navy (SEMAR) and state along exposed Caribbean stretches; north Gulf-facing shore rarely needs them.
Public cleanup
SEMAR sargassum-collection vessels offshore; ZOFEMAT municipal crews on public beaches.
Resort crews
Large resorts run their own barrier/rake crews at dawn.
Typical clearing time
same-day

Safety notes

US State Dept: Quintana Roo, Level 2 (exercise increased caution)

Things to do in Cancún & Isla Mujeres

Coordinates approximate; forecasts are estimates, not safety guidance.