La Ventana spearfishing forecast — wind, swell, visibility, tides & live cameras

La Ventana · Mexico
8.2
wave 0.3 m head-on
visibility5m

Dive todaywave, wind and visibility.

Sources: IPMA · NDBC · Copernicushigh confidence · data 11:12

Sources & confidence

Sources
IPMA · NDBC buoys · Copernicus Marine
Method
Model consensus, read per window
Freshness
Re-read every hour, per coast

Compiled by the spearo sea-state engine

The verdict comes from seven water factors and hard safety gates — not ten tabs. Go or stay.

How we score the water

Our own model

Our own forecast engine — not a third-party widget. It weighs these water factors into one go-or-stay verdict for this coast; the 0–10 dial is that verdict, read out as a number.

Swell & wave memory
Height, period and direction of the swell, plus the wake of recent storms — an old storm still stirs the water, and the engine remembers.
Wind & gusts
Speed and gusts, hour by hour — wind speed and an onshore push chop the surface and cut visibility.
Tide phase
Timing and range of the tide, calibrated per coast — big spring tides pull the verdict toward caution.
Water temperature
Sea-surface temperature — sharply cold water vetoes a green verdict.
Currents & outflow
Direction and drift of the current — it pushes you, and it drags turbid coastal water across where you dive.
Rain runoff & air clarity
Rain muddies the water inshore through land runoff, while fog and haze cut visibility at the surface.
Coast shape & exposure
How the coast faces the swell — a sheltered cove keeps the water clean; an exposed, head-on point takes a penalty.

Safety gates

  • Thunderstorm forecast — an instant red, no exceptions.
  • An official warning (MeteoAlarm / IPMA) — yellow, or red for the higher ranks.
  • Missing input data — a would-be green is capped to yellow rather than overstated.
  • Strong disagreement between forecast models — a green day is pulled back to yellow.
  • Night hours — forced red; the window is closed after dark.

It all folds into a single 0–10 score and one verdict: go or stay.

A forecast, not a guarantee — the sea has the last word.

Where to get in, where to hunt

Entry points with coordinates
Seabed relief — promising ground

This verdict — in your pocket. Open the app for the week's window.

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Android beta — QR code
point your camera
0 m

Surface

Wind, wave and the swell windows — when to go and the best hours.

spearo.app
calmupdated 11:12
La Ventana — solo, off the rocks
BEST WINDOW
best weather window · solo, stay careful, run the checklist · calm conditions: swell, wind and visibility all normal
wave 0.3 m head-onwind 13 km/hvisibility ~7 mwindow 09:00–21:00
today, best window 18:00–21:00
fish · Visibility 7 m · Water 30.2°C
confidence high · verdict for the selected day
Whole week — tap a day. is driving swell right now.
Solo risk: carry a float · tell someone your plan and exit time · doubt = don't go. A model-based planner; the call is made on site.
Selected day

Windows, hours
and the day's trends.

The day is picked above, in the hero. Here are that day's windows, the hour-by-hour map and the trends. Tap a window to break down the conditions.

Wednesday · today2026-07-22
05:4419:08 · first quarter
14:00
Hours (06→20)
09
12
15
18
Day's trends
Tide0.07 m
Wave0.22 m
Wind4 km/h
Water30 °C
fish activity: moonset 00:03 · moderate · moon underfoot 06:50 · high · moonrise 13:45 · moderate · moon overhead 19:10 · high
Conditions window09:00–12:00
caution — solo off the rocks is risky, check on site fish
Hs 0.30 mperiod 6.4 swind 23→25surge 0viz 5 m
0.30 mup to ~0.60 · 204° at an angle
6.4 sswell moderate
23→25gusts 25 km/h
0weak surge
0.11m/s
5 mrecent swell
30°C5 mm + hood
▲14:00tide rising
Atmosphere46 kmlandmarks visible
lowoff the lunar peaks
  • wind 23 km/h
  • flood — water rising
confidence lowday
Open the seafloor map with entry points

Your best window — with you. Forecast in your pocket.

Android: the public release is in Google Play review — leave your email and we'll send beta access today.

Android beta — QR code
point your camera
−10 m

The water column

Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.

What it is

A marine instrument,
go / no-go for solo hunting.

spearo.app folds wind, wave, swell period, visibility, tides, water temperature and risk into a single verdict — go to the spot or not. It computes 7 days ahead from open marine models (Open-Meteo, IPMA), with no sign-up and no accounts. Built for solo spearfishing off the rocks, where any mistake costs dearly.

Now live: 1152 spots across 189 stretches of coast — mainland Portugal, Madeira and the Azores.

See all spots
−20 m

The seabed

Relief and bottom type, tides, and the depths of each spot.

On the rock

The forecast is the plan.
The call is on the rock.

The models set the window. Whether you go in is read only at the water: count the sets, watch the surge on the entry. If in doubt, you don't get in.

Entry points

Where to get in
off the rocks.

Scouted entries, coloured by today. The colour is the sea state at the spot, not a guarantee: the wash and a slippery entry you judge on site.

Open the seafloor map
Bahía de los Sueños / Los MuertosLa Ventana
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rocky reef, 3–16 m — legal (outside reserves). Cabrilla, pez fuerte, barracuda, grouper.

Google Maps
Isla Cerralvo (flanco W)La Ventana
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

West flank of Cerralvo, 5–26 m, by boat. Coords approximate, check your water entry.

Google Maps
Las Arenas / Punta PericoLa Ventana
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rock reef at Ensenada de Muertos, 3–15 m, shore/boat. Coords approximate, check your water entry.

Google Maps
Punta Gorda (La Ventana)La Ventana
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rocky reef, 4–18 m — legal (outside reserves). Cabrilla, pez fuerte, barracuda, grouper.

Google Maps

SOLO is the biggest risk: underwater you can black out from lack of oxygen silently and fatally, with no one around. Solo is never truly «safe». Below are the best weather windows; carry a buoy, tell someone your plan and exit time, and any doubt — don't go.

One morning glance — and you know.

Android: the public release is in Google Play review — leave your email and we'll send beta access today.

Android beta — QR code
point your camera

Surfacing

Cameras, map and reference — to hand as you come up.

Live cameras, map & reference
Open the seafloor map →
Reference

What's in season,
what the law says.

In season now
  • dog snapper / pargo
    3–15 m · tide change — moving water · dusk/night
    Hard-fighting reef snapper around rocky points & pinnacles; ambush on the tide change, best at dusk/night. Peaks in the warm months. Mexican rule sets no minimum size.
  • leopard grouper
    5–25 m · tide change — moving water · daytime
    Leopard grouper on rocky reef, by day. Forms spawning aggregations in spring (Apr–Jun) — very vulnerable then, take sparingly. No minimum size in the rule.
  • white seabass
    3–20 m · tide change — moving water · dawn/dusk
    White seabass over reef & kelp edges; spring peak, best at dusk on moving water. No minimum size in the rule.
  • California sheephead
    3–20 m · tide change — moving water · daytime
    California sheephead on rocky reef, by day; resident, best in the warm months. Roots the bottom — approach slowly. No minimum size in the rule.
  • yellow snapper
    3–15 m · tide change — moving water · dusk/night
    Yellow snapper by rocks & estuary edges; warm months, best at dusk/night on the tide change. No minimum size in the rule.
off season: yellowtail (Dec Jan Feb Mar Apr May) · Pacific sierra (Nov Dec Jan Feb Mar Apr)
Not a target — don't shoot
  • mahi-mahi / dorado⚠️ release / rod-only
    ⚠️ Reserved for rod-and-reel in the 50-mile belt — conservatively DON'T spear it (the exact DOF wording isn't quoted).
  • roosterfish⚠️ release / rod-only
    ⚠️ Reserved for rod-and-reel in the 50-mile belt — conservatively DON'T spear it (the exact DOF wording isn't quoted).
  • totoaba🚫 no-take
    🚫 Totoaba — permanent no-take (moratorium since 1975, NOM-059 'P', CITES I). Do not take, release.
Law
  • 🚫 Sport spearfishing is fish-only: lobster, conch (caracol) and octopus may NOT be speared (squid is the sole exception). §4.2.
  • 🚫 Totoaba, sea turtles, marine mammals and corals — no-take (). Inside the national parks (Cabo Pulmo, Cozumel, Puerto Morelos, Revillagigedo) all hunting is banned.
Safety protocol
  • Sets: watch the wave trains ≥15 min before entering; Hmax ≈ 2×Hs, the wash can run 50 m past the foam line. A lull >10 min with period >12 s = a big set «overdue», do NOT enter; enter right after a full set passes and re-check at minute 30.
  • Exit FIRST: find your exit AND a backup before entering. On a rocky/boulder shore a 0.5 m rise in swell can make the exit impossible — getting pinned/unable to climb out is the main killer.
  • Headland rip: prominent points often have a permanent topographic rip regardless of the model — locate it, enter/exit on the windward side, never swim against it.
  • Cold: wetsuit per the SST chip; the first shiver = a metabolic surge and a drop in breath-hold → get out at the first steady shiver. Cap the session at 45–60 min below 15 °C.
  • Solo discipline: buoy up; tell someone the spot and exit time; conservative breath-hold (never push it in cold/murky/surfy water); visibility <3 m — don't enter.
  • Afternoon wind: on many coasts the wind builds from midday — plan to be out of the water by midday; the chop builds — get out.
  • UV 11:00–15:00 (UVI ≥6): sunscreen and cover up on the surface interval.
  • Solo is a fundamental risk (hypoxic blackout with no buddy). Any doubt = No-go.
Local guide · La Ventana

Spearfishing in La Ventana: spots, seasons and rules

Updated 2026-07-09 · By Oleksandr, spearfisher

Spearfishing in La Ventana combines Isla Cerralvo with rocky reefs toward Las Arenas and Ensenada de Muertos. Cerralvo is the deeper boat option at 5-26 m; Las Arenas/Punta Perico can work from shore or boat in 3-15 m; Punta Gorda and Bahia de los Sueños/Los Muertos round out the shallow-to-mid-depth rock. Treat all as intermediate. Carry the CONAPESCA/SADER permit, hunt on apnea only, and skip protected, coral or unclear water.

TL;DR

  • La Ventana runs on two axes: Cerralvo by boat and the Las Arenas/Punta Perico line toward Ensenada de Muertos.
  • Useful spots are Cerralvo west flank, Las Arenas/Punta Perico, Punta Gorda and Bahia de los Sueños/Los Muertos.
  • Mexico rules: CONAPESCA/SADER permit, apnea only, one speargun, five fish daily and no ANP, coral or unclear-boundary hunting.

Best spearfishing spots in La Ventana

Do not read La Ventana as one beach. The useful choice is between Cerralvo structure and the Las Arenas line, depending on wind, pickup and exit.

SpotTypeDepthLevelAccessNotes
Isla Cerralvo west flankRocky island flank5-26 mIntermediate; boat diveBy boat, approximate coordinatesThe broadest and deepest option. Use only with a skipper tracking drift and pickup.
Las Arenas / Punta PericoRock reef in Ensenada de Muertos3-15 mIntermediateShore or boat depending on conditionsMore flexible than Cerralvo. Check surf, boat traffic and visibility first.
Punta GordaRocky reef4-18 mIntermediate in calm seaEntry to verify locallyRock for cabrilla, reef fish, barracuda and grouper. Do not force it in cross-wind.
Bahia de los Sueños / Los MuertosCoastal rock reef3-16 mIntermediateShore or boat with clear exitA shallow-to-mid-depth alternative. Confirm the exit before loading.

When are conditions best in La Ventana?

Wind, drift and pickup decide the day. Cerralvo can work in clear moving water, but if the boat cannot track the float, use Las Arenas or cancel. Warm months suit cabrilla, snapper, barracuda and grouper; tide change can matter more. Mexico still requires a CONAPESCA/SADER permit, apnea only, one band or pneumatic speargun, five fish per day, distance from swimmers or commercial gear, no lobster, conch or octopus, and no shooting in ANP cores, coral or uncertain polygons.

FAQ

Where can you spearfish in La Ventana?

Use Isla Cerralvo west flank, Las Arenas/Punta Perico, Punta Gorda and Bahia de los Sueños/Los Muertos.

Is Cerralvo beginner friendly?

No. It needs boat support, drift control and a clear pickup plan.

Can you shore dive?

Sometimes around Las Arenas/Punta Perico or coastal reefs, but only with a checked exit and calm sea.

Do you need a CONAPESCA permit?

Yes. The individual recreational-sport fishing permit is required.

Can you spear dorado or roosterfish?

No. Treat them as reserved for rod-and-reel sport fishing.

Sources

Nearby towns

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