Environmental Intelligence
Sargassum Impact Tracker
Seasonal sargassum seaweed accumulation is the single biggest environmental factor affecting short-term rental occupancy and property values in Tulum and Akumal. Peak season runs May through September. This tracker shows historical risk by zone and current seasonal outlook.
HIGH SARGASSUM RISK
Based on historical accumulation patterns for Jul. Actual conditions vary by specific beach location and daily wind patterns.
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
LOW
LOW-MODERATE
MODERATE
MODERATE-HIGH
HIGH
Cancun Hotel Zone
LOWNorth-facing beaches largely protected by barrier reef. Sargassum impact typically low to moderate.
Historical peak risk: May - September
Playa del Carmen
MODERATECentral Riviera Maya coast. Moderate exposure. Beach cleaning operations active from major hotels.
Historical peak risk: May - September
Tulum
HIGHHigh historical sargassum impact zone. Bohemian beach character means less industrial cleaning. Peak impact May-September.
Historical peak risk: May - September
Akumal / South
MODERATESouth of Playa. Variable impact. Protected bay at Akumal itself buffers some accumulation.
Historical peak risk: May - September
Puerto Morelos
LOWBarrier reef provides significant protection. One of the lowest sargassum impact zones in the corridor.
Historical peak risk: May - September
STR occupancy impact
Tulum STR occupancy drops 15-25% during peak sargassum months (June-August) compared to winter season. Model this in your rental yield projections -- do not assume year-round peak occupancy.
Beach cleaning operations
Major hotel zones in Cancun and Playa del Carmen invest heavily in beach cleaning equipment. Boutique developments in Tulum typically do not. Ask developers specifically about their sargassum management plan.
Property value correlation
Beachfront properties in high-sargassum zones (Tulum, parts of Akumal) sell at a measurable discount to equivalent properties in Puerto Morelos and Cancun Hotel Zone. Price per m2 data reflects this premium.
Reef protection as buffer
Puerto Morelos sits behind one of the largest barrier reefs in the Western Hemisphere, which significantly reduces sargassum accumulation. This is a genuine differentiator for that zone.
Long-term trend
Annual sargassum volumes in the Caribbean have increased significantly since 2011, driven by Atlantic fertilization from agricultural runoff. The 2023 season was record-breaking. This is a structural risk, not a cyclical one.
Data sources: Historical accumulation patterns based on CONABIO satellite monitoring data, UNAM oceanographic research, and Riviera Audit local field reporting. Real-time satellite data integrated as available. Conditions vary daily with wind patterns and ocean currents -- verify current conditions before site visits.