Impression Isla Mujeres beach & sargassum forecast
Isla Mujeres, MX · Cancún & Isla Mujeres, Mexico · 21.260, -86.752
Updated : moderate seaweed, beach grade B-, sea 84°F.
Also listed as Impression Isla Mujeres by Secrets - Adults Only - All Inclusive.
Veabird's call
Monday grades B with 83°F water on this northwest-facing beach, still moderate seaweed.
February and March grade A-, with seaweed usually lowest in February.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.
Tell me when Impression Isla Mujeres is clear
One email when the seaweed clears or the beach grades A, at most once a week per beach. We only ask for your email address, and every email has a one-click unsubscribe.
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Questions about Impression Isla Mujeres
Does Isla Mujeres get sargassum (seaweed)?
Only a little in most years. At Impression Isla Mujeres the typical-year risk stays low, even around July, the usual peak (moderate or heavier seaweed on the beach in an estimated 24% of weeks). Landings vary by year, wind and currents.
How warm is the water at Impression Isla Mujeres?
About 83°F in November. The sea is warmest in August and September (about 86°F) and coolest in February (about 79°F).
When is the best time to visit Impression Isla Mujeres?
For warm water and dry weather, aim for January through May. May is usually the quietest of those, with about 12 rainy days and a sea near 83°F.
When is hurricane season at Impression Isla Mujeres, and how often do storms hit?
The Atlantic hurricane season runs June through November and peaks around September. A tropical storm passed within 86 miles of Impression Isla Mujeres in 18 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 7. The riskiest stretch is around September 17, when the chance of a storm passing in any one week is about 3%; across all of September it is about 11%. Flexible bookings and travel insurance help in the peak weeks.
What guests say about Impression Isla Mujeres by Secrets - Adults Only - All Inclusive
Guests like Luxurious experience · Exceptional service
- Cleanliness
9.1 - Service
9.9 - Location
9.6 - Room Quality
9.5 - Amenities
9.3 - Value for Money
9.1 - Food and Beverage
9.5 - Overall Experience
9.6
Read all 283 reviews · Compare on Expedia
Scores and reviews come from guests who stayed, through LiteAPI (Nuitée). The likes, watch-fors and category scores are an AI summary of those reviews. Partner links: Veabird may earn a commission.
Sargassum season at Impression Isla Mujeres
Low sargassum risk year-round at Impression Isla Mujeres: even around July, the usual peak, Veabird estimates moderate or heavier seaweed on the beach in about 24% of weeks. 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: 20% of weeks here on average, against 54% off Quintana Roo, so 37% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 45%) 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 330°; 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.
Weather, water & seaweed by month at Impression Isla 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.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 80°F | 80°F | 14 | Very low |
| Feb | 81°F | 79°F | 12 | Very low |
| Mar | 83°F | 80°F | 11 | Low |
| Apr | 85°F | 81°F | 9 | Low |
| May | 88°F | 83°F | 12 | Low |
| Jun | 87°F | 84°F | 18 | Low |
| Jul | 89°F | 85°F | 16 | Low |
| Aug | 89°F | 86°F | 17 | Low |
| Sep | 88°F | 86°F | 20 | Low |
| Oct | 86°F | 85°F | 20 | Very low |
| Nov | 83°F | 83°F | 18 | Very low |
| Dec | 81°F | 81°F | 15 | Very low |
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 Isla 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 are a week in October. Change them to match the live forecast above.
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Nearest airports
- Cancún Intl (CUN), ~28 km
Nearby resorts
- Ixchel Beach Hotel Isla Mujeres, MX · 0 km
- Na Balam Beach Hotel (Playa Norte) Isla Mujeres, MX · 0 km
- Hotel Privilege Aluxes Isla Mujeres, MX · 0 km
- Villa Kiin Isla Mujeres, MX · 0 km
- Playa la Media Luna Hotel Isla Mujeres, MX · 0 km
- Ocean Drive Hotel Isla Mujeres Isla Mujeres, MX · 0 km
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