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Isla Mujeres (Zona Continental) · Mexican Caribbean

Costa Mujeres

A clearer picture of your next beach day. Check the sargassum. Pick your month. Find your stay.

Plan a visit Places to stay

01 / Sargassum outlook

Current estimate

Light sargassum

Estimated · Low confidence

Usually much less sargassum than exposed Cancun, Riviera Maya and Tulum beaches under comparable regional conditions.

Why?

A rough starting estimate from the regional alert, not a report from this beach.

Regional report: SEMAR, 2026-09-21 (1 calendar day old).

Reviewed usual amounts replace the simple geography assumption. This remains background context; trustworthy current evidence can override it.

Usual sargassum amounts

Usually much less sargassum than exposed Cancun, Riviera Maya and Tulum beaches under comparable regional conditions.

Lower usual amounts do not mean no arrivals. Storms and transport changes can bring large accumulations; the size of the reduction has not been measured.

Moderate support for this background tendency. This does not increase confidence in today's condition or establish a measured percentage reduction.

Season: Arrivals can remain substantial. The regional report supplies current context; no extra calendar adjustment is added. Regional Caribbean tendency; no beach-specific monthly frequencies established.

Tendency sources and limitations
  • Cestee: comparative beach visit

    May 2026 trip, updated September 1, 2026. Specific coastal contrasts; one trip cannot establish frequencies. Affiliate travel publisher.

  • Journey Mexico: regional overview

    Supports regional contrasts; changing editorial update and hotel-cleaning context, not a standardized beach time series.

  • Local comparative knowledge

    Costa Mujeres generally has much less sargassum than some Cancun, Riviera Maya and Tulum beaches. Dates, measured amounts and beach frontage are unspecified; not a current observation.

  • Por Esto: Costa Mujeres after Beryl

    July 10, 2024 reporting of substantial arrivals at Punta Sam and Costa Mujeres after Beryl; an exception to a lower-amount tendency.

  • CONANP: Isla Contoy beaches

    Describes sargassum accumulation and turtle-nesting impacts, including April-August regional concentrations. Prevents an island-wide sargassum-free claim.

  • Riviera Maya seasonal overview

    Broad April-October season and common May-August peak; no measured per-beach monthly probabilities.

  • UNAM: variable seasonal intensity

    June-September can have high intensity. Regional offshore supply does not guarantee arrivals at a particular beach.

Reviewed tendency notes

Calculated: .

Reliability, location, coverage and recency are assessed separately; a newer report is not automatically more trustworthy.

Recent local evidence and same-beach seasonal history are not yet qualified for this estimate.

  • TV Azteca · 2026-06-03

    Yellow: moderate arrivals · Historical report

    Report date: 2026-06-03; exact observation time unknown

    Publisher claim for the named beach; exact observation time and shoreline coverage are unverified.

    Weak or incomplete support · Not used influence

    This observation is outside the comparable historical season.

  • TV Azteca · 2026-06-29

    Yellow: moderate arrivals · Historical report

    Report date: 2026-06-29; exact observation time unknown

    Publisher claim for the named beach; exact observation time and shoreline coverage are unverified.

    Weak or incomplete support · Not used influence

    This observation is outside the comparable historical season.

Beach exposure: mapped shore faces east (89°). Geometry and regional context are low-confidence inputs, not observations.

The reviewed amount tendency replaces the orientation-only adjustment; geography is not counted twice. Qualified wind and current context can still modify the starting estimate.

SEMAR regional wind (2026-09-21): toward this mapped shoreline.

No qualified locality current; no current adjustment used.

Cleanup is not included. Same-beach seasonal reports enter separately through combined evidence, without counting them twice.

Reviewed shoreline profiles · © OpenStreetMap contributors, ODbL

02 / Plan your visit

Find your beach month.

Lower amountModerate amountHigher amount

June 2027

Lower expected amount

Typical seasonal pattern, not a forecast for those dates. Low confidence. 2 nearby-season reports support the historical context.

Compare beaches View this month on map
History & why this beach

Usually much less sargassum than exposed Cancun, Riviera Maya and Tulum beaches under comparable regional conditions.

Geographic evidence: moderate support. Seasonal outlook confidence: low. This compares usual relative amounts; it does not predict a particular year’s bloom or hotel cleanup.

03 / See the coast

Take a closer look.

Nearby views, not confirmation of this beach’s conditions. Check the operator’s displayed time. Cameras are not yet included in our estimate.

Explore all cameras on the map ↗

04 / Stay by the sea

Make this your beach.

Start with the beach you want, then find a place to stay. Check the exact beachfront and your travel dates before booking.

Official hotel links, not live prices or availability. Conditions at the hotel’s swimming area can differ from the beach estimate.

Sources & how this estimate works

SEMAR regional bulletin

Issue · IOGMC 1561

Original bulletin

Historical issue; not a current beach confirmation

Last recorded source check: . Issue 2026-09-22: not available at that check. This does not refresh the retained report or confirm beach conditions.

Reported regional alert: ALTO. This is not a condition assigned to the selected beach.

Where the publisher expected arrival

Relative hours are copied from this issue, not counted from now. Place names describe the publisher's scope, not every nearby beach.

  • Punta NizucPossible arrival reported · 24 h in the sourceOffshore group 1. No beach-specific quantity inferred.
  • Cancún e Isla MujeresPossible arrival reported · 48 h in the sourceOffshore group 2. No beach-specific quantity inferred.
  • Puerto Morelos y Punta MaromaPossible arrival reported · 24 h in the sourceOffshore group 3. No beach-specific quantity inferred.
  • Playa del CarmenPossible arrival reported · 24 h in the sourceOffshore group 4. No beach-specific quantity inferred.
  • PlayacarPossible arrival reported · 24 h in the sourceOffshore group 5. No beach-specific quantity inferred.
  • CozumelPossible arrival reported · 24 h in the sourceOffshore group 6. No beach-specific quantity inferred.
  • TulumPossible arrival reported · 24 h in the sourceOffshore group 7. No beach-specific quantity inferred.
  • No named destinationArrival not indicated for this offshore group · 24 h in the sourceOffshore group 8. This does not mean a beach is clear.
  • XcalakPossible arrival reported · 24 h in the sourceOffshore group 9. No beach-specific quantity inferred.

Reported wind

  • Northern region: 1-5 kn from E
  • Southern region: 1-3 kn from E

Reported currents

  • Xcalak: 0.1 kn toward E
  • Mahahual: 0.4 kn toward N
  • Tulum: 0.5 kn toward N
  • Playa del Carmen: 2.4 kn toward NE
  • Puerto Morelos: 2.2 kn toward NE
  • Cancún: 0.2 kn toward NE

Source: SEMAR / IOGMC. Collected 2026-09-22. Regional reports can share satellite inputs. They are not independent beach observations or a validated BeachSignal forecast.

Accumulation now and future arrival are different questions. Local orientation, currents and cleanup can change conditions. EXIF alone cannot verify the image or the whole shoreline. Reviewed photographs and qualified camera observations can improve future estimates; they are not automatically included today.

Read our methodology ↗