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Mexico · Isla Mujeres / Cancún bank

Sailfish are in the mix — the same edge as it dumps; troll along it, never across.

Winter sailfish capital. The fleet works the Yucatan current north of Cancún. Mahi on the weed in summer. This is a troll-and-kite desk, not a bonefish brief. Modeled tide, Open-Meteo wind.

  • ⚠ This brief is for 2026-03-20, not this morning. Wind is a forecast. Observed water versus the table is a today-only instrument.
  • ⚠ Mexico requires a CONAPESCA license. Sian Ka’an, Contoy, and Espíritu Santo are park or biosphere water — verify before you fish.
  • Tide · modeled — no NOAA gauge
  • No NDBC on this desk
  • Sargassum check failed — not all-clear
5.5OF 10

Forecast

low confidence

Forecast brief for Friday, March 20. Back to this morning

Morning line

Mujeres 5.5 on Friday, March 20. 12 mph ENE. Clear. YOLO day is Saturday, August 29. Scores are 1–10, not a bite.

Mail it
-1.0-0.50.00.51.1HLHLHLHLFri 7 AMSat 7 AMSun 7 AMMon 7 AM
outgoing · 0.21 ft · drag or hover for the clockModeled M2 clock — no NOAA gauge on this water. Not a buoy.

Wind

OPEN-METEO

NESW12MPH

From ENE · gust 15

Buoy

No station

None

No honest NDBC or C-MAN near this water. Do not invent a buoy.

Sky

OPEN-METEO

Clear

Clear

A 20% shower chance is not a cancel. A soaker is.

Moon

4% lit

Waxing crescent

spring range · 4%

Water

No gauge

Water

—

48°92°

Today’s range 1.1 ft

outgoing

0.21 ft modeled

Coast

No live coast layer

Sargassum check failed. Not a GPS pin. Not all-clear.

Clock

Modeled M2

  • HighFri 6:00 AM · 0.47
  • LowFri 12:00 PM · -0.49
  • HighFri 6:00 PM · 0.51
  • LowSat 1:00 AM · -0.53
  • HighSat 7:00 AM · 0.56

Mexico tides are modeled from lunar M2. Use them for windows, not a bar crossing. There is no NOAA gauge here.

Monthly YOLO day

Saturday, August 29

Best remaining dry day this month with a real wind forecast — and it is a copper day. waning gibbous · spring · tide range ~0.9 ft · wind to 9 mph · 51% chance of rain

Stay or drive · Mujeres vs East CapeOpen the calendarMorning dispatch

Next two weeks

Pulling the 14-day strip…

Where

This pip is that mark on this tide — not the day on the ring.

No marks match this method on this water.

When

When is moving water in a good hour — not the day. First light and last light are named when the clock is the story. Today’s ring mixes the best mark, the lead fish, and the best window, then taxes the sky. A strong incoming can sit under a weak day if the wind or the fish is off. Calendar cells are a third recipe: range, moon, and the day’s forecast.

  • Outgoing water

    9.5

    Fri 8:00 AM → Fri 2:00 PM

    Moving water in the right part of the day.

  • Last light · incoming

    9.2

    Fri 1:00 PM → Fri 8:00 PM

    Last light on incoming water.

  • Last light · outgoing

    8.1

    Fri 8:00 PM → Sat 2:00 AM

    Last light on outgoing water.

  • First light · incoming

    9.5

    Sat 2:00 AM → Sat 9:00 AM

    First light on incoming water.

  • Outgoing water

    9.5

    Sat 8:00 AM → Sat 3:00 PM

    Moving water in the right part of the day.

Launch and beach access

Lodge towns and cited marinas. CONAPESCA license. Biosphere and park water is not a freelance wade.

  • Isla Mujeres marinas

    CONAPESCA / Quintana Roo

    The sailfish fleet door. Not a flats ramp.

    Official source

Legal water

No-take and closed water cited to the agency that owns it. Only the Keys box is FKNMS.

No FKNMS polygon in this box. Mainland Florida, Louisiana, Texas, Mexico, and the Bahamas are not Keys sanctuary closures.

Why — and who

  • — Tide is outgoing (modeled — no NOAA gauge on this water).
  • — Clear. Sky is workable.
  • — Wind 12 mph ENE. Work the leeward shore. Fly gets harder.
  • — Waxing crescent moon — spring tide range. Offshore wants bait and current more than a skinny tide.

Sailfish

Istiophorus platypterus

3.5

Thermal window

—

66°90°

Bluewater. Weedlines, humps, and the edge — not this flat or marsh. Switch method to Offshore. In peak season for this water. This tide stage (outgoing) matches how they hunt.

Florida: catch-and-release for Atlantic sail except a rare harvest tag. Federal HMS permit in federal waters. Texas/Bahamas: treat as C&R.

Wahoo

Acanthocybium solandri

3.5

Thermal window

—

66°88°

Bluewater. Weedlines, humps, and the edge — not this flat or marsh. Switch method to Offshore. In peak season for this water. This tide stage (outgoing) matches how they hunt.

Mexico: verify CONAPESCA.

Tuna (blackfin / yellowfin)

Thunnus atlanticus / Thunnus albacares

2.8

Thermal window

—

66°92°

Bluewater. Weedlines, humps, and the edge — not this flat or marsh. Switch method to Offshore. Present, not peak. This tide stage (outgoing) matches how they hunt.

Federal HMS rules. Yellowfin typically 27 in curved fork. Blackfin often more liberal — verify NOAA HMS and FWC/TPWD the morning you leave the inlet.

Mahi-mahi

Coryphaena hippurus

2.0

Thermal window

—

66°92°

Bluewater. Weedlines, humps, and the edge — not this flat or marsh. Switch method to Offshore. Off-season here. This tide stage (outgoing) matches how they hunt.

Florida: typically 10/person, 60/vessel, 20 in fork. Texas: 3/day in federal waters under HMS/coastal rules — verify NOAA HMS and TPWD. Mexico: verify CONAPESCA. Bahamas: check current bag.

Great barracuda

Sphyraena barracuda

5.8

Thermal window

—

66°92°

Bycatch and beach noise — not the reason you came. Present, not peak. This tide stage (outgoing) matches how they hunt.

Incidental. Ciguatera is a real reason not to keep a big one.

Jack crevalle

Caranx hippos

4.8

Thermal window

—

64°94°

Bycatch and beach noise — not the reason you came. Off-season here. This tide stage (outgoing) matches how they hunt.

Incidental. Not why you booked Ascension or East Cape.

Regs citedCONAPESCA recreational license · current CONAPESCA rules · rolls in 7 days. Sian Ka’an, Contoy, and Espíritu Santo are park or biosphere water. Roosterfish is Baja, not the Gulf.