Catalonia Grand Costa Mujeres beach & sargassum forecast

Sargassum season at Catalonia Grand Costa Mujeres

Sargassum risk at Catalonia Grand Costa Mujeres typically peaks around July (moderate: moderate or heavier seaweed on the beach in an estimated 33% of weeks). Lowest-risk months: January, February, March, April, May, August, September, October, November and December. Actual landings vary a lot by year, wind and currents; check the live conditions above.

Estimated share of weeks in each month with moderate or heavier seaweed on the beach. Veabird takes the landing season seen on Quintana Roo's beaches (a Puerto Morelos beach camera, 2015–2020, and the Mexican Navy's beach alerts, 2022–2026) and scales it by how often NOAA AOML satellites see notable seaweed within about 20 km of this stretch of coast: 27% of weeks here on average, against 54% off Quintana Roo, so 50% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 64%) measures seaweed offshore, not on the sand: off the Riviera Maya it reads high even in winter, when little lands. Very low under 10%, Low 10–24%, Moderate 25–44%, High 45–69%, Very high 70%+. Beach faces 94°; onshore winds from that direction push seaweed ashore. Satellite sargassum data: USF Optical Oceanography Lab (Sargassum Watch System) via NOAA AOML. The satellite record as open data.

Cancún month by month

Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Cancún.

• Cancún in January
• Cancún in February
• Cancún in March
• Cancún in April
• Cancún in May
• Cancún in June
• Cancún in July
• Cancún in August
• Cancún in September
• Cancún in October
• Cancún in November
• Cancún in December

Weather, water & seaweed by month at Catalonia Grand Costa Mujeres

Average highs run from about 80°F in January to 89°F in July and August. The sea is warmest in August and September (about 86°F) and coolest in February (about 79°F). April is usually the driest, with about 9 rainy days; September and October are the wettest, with about 20 rainy days. Seaweed risk is usually lowest in October and highest in July.

Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Sargassum is the typical-year estimate described above. Any given year can differ.

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)

• Caribbean-facing Hotel Zone beaches have strong surf; north-facing Playa Norte/Gulf side calmer.
• Use authorized taxis; stay in tourist zones at night.

Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.

Things to do near Costa Mujeres, MX

• Isla Mujeres & Playa Norte
• MUSA underwater museum
• Whale shark tours (Jun–Sep)
• Chichén Itzá day trip
• Holbox bioluminescence

Fly in for the best beach days

Suggested dates fall in October, typically the lowest-seaweed month ahead for Catalonia Grand Costa Mujeres. Change them to match the live forecast above.

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Nearest airports

• Cancún Intl (CUN), ~29 km

Nearby resorts

• Planet Hollywood Cancun Costa Mujeres, MX · 0 km
• Secrets Playa Blanca Costa Mujeres Costa Mujeres, MX · 1 km
• Majestic Mirage Costa Mujeres - All-Suite Resort Costa Mujeres, MX · 1 km
• Hotel Riu Latino Costa Mujeres, MX · 1 km
• Hotel Riu Palace Costa Mujeres Costa Mujeres, MX · 2 km
• Majestic Elegance Costa Mujeres Costa Mujeres, MX · 2 km