Isla Holbox spearfishing forecast — wind, swell, visibility, tides & live cameras

Isla Holbox · Mexico
8.2
wave 0.2 m head-on
visibility5m

Dive todaywave, wind and visibility.

Sources: IPMA · NDBC · Copernicushigh confidence · data 13:30

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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0 m

Surface

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

spearo.app
calmupdated 13:30
Isla Holbox — solo, off the rocks
BEST WINDOW
best weather window · solo, stay careful, run the checklist · calm conditions: swell, wind and visibility all normal
wave 0.2 m head-onwind 11, gusts 28 km/hvisibility ~7 mwindow 12:00–21:00
today, best window 12:00–15:00
fish · Visibility 7 m · Water 28.5°C
confidence medium · 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
06:1919:33 · first quarter
06:00 14:00 21:00 · 0.4 m
Hours (06→20)
12
15
18
Day's trends
Tide-0.33 m
Wave0.26 m
Wind8 km/h
Water28 °C
fish activity: moonset 00:35 · moderate · moon underfoot 07:20 · high · moonrise 14:07 · moderate · moon overhead 19:40 · high
Conditions window12:00–15:00
best weather window · solo, stay careful, run the checklist fish
Hs 0.22 mperiod 5.3 s head-onwind 11→28surge 0.1viz 5 m
0.22 mup to ~0.44 · 353° head-on
5.3 sswell moderate
11→28gusts 28 km/h
0.1weak surge
0.11m/s
5 mrecent swell
28.5°C5 mm + hood
▲14:00tide turn near
Atmosphere12 kmlandmarks visible
moderatemoonrise
  • calm conditions: swell, wind and visibility all normal
  • visibility ~5 m
confidence mediumday
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
Bajos de Holbox (Yum Balam)Isla Holbox
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Shallow sand-and-seagrass flats, 3–8 m; lionfish only. Coords approximate, check your water entry.

Google Maps
Bajos de Holbox exterior (pez león)Isla Holbox
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Reef, 3–12 m — legal but inside an ANP buffer — verify the zoning. Amberjack, cabrilla, wahoo, tuna.

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
  • mutton / dog snapper
    5–20 m · on the current by structure · dusk/night
    Reef snapper on the edge & drop-offs; work the reef rim on the current, best at dusk/night. Warm months. Mexican rule sets no minimum size.
  • red grouper
    8–30 m · on the current by structure · daytime
    Grouper on reef ledges & holes — stalk slowly along the bottom. ⚠️ Yucatán closed 1 Feb–31 Mar; off-season take sparingly (vulnerable). Mexican rule sets no minimum size.
  • crevalle jack
    1–20 m · on the current by structure · daytime
    Fast crevalle jack on the reef edge, by day — shoot on the current, quick. No minimum size in the rule.
  • great barracuda
    1–25 m · on the current by structure · daytime
    ⚠️ Big barracuda/reef predators in the Caribbean — ciguatera risk. Eat small ones, avoid big reef fish.
  • lionfish
    3–40 m · on the current by structure · daytime
    Invasive — culling ENCOURAGED year-round. Tucks under ledges / in reef shade and lets you get close. Venomous spines — handle with care; excellent eating.
off season: hogfish (Dec Jan Feb Mar Apr May Jun)
Not a target — don't shoot
  • Nassau grouper🚫 no-take
    🚫 Nassau grouper — protected (critically endangered): do not take, release. Slow-growing, forms spawning aggregations.
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.

FAQ — spearfishing in Isla Holbox

Where can I spearfish in Isla Holbox?

Isla Holbox has rock entry points such as Bajos de Holbox (Yum Balam) and Bajos de Holbox exterior (pez león). Isla Holbox is the north corner of Quintana Roo: a shallow, slightly turbid north-facing lagoon, inside the Yum Balam Reserve and the whale-shark route. Below you'll find each spot (access, shelter and hazards) and today's forecast.

When is the best season in Isla Holbox?

Warm, clear reef water; best winter–spring (low sargassum). Sargassum Apr–Oct clouds the shore, hurricanes Jun–Nov. Many no-take parks — hunt outside them.

How cold is the water in Isla Holbox?

Warm, ~26–29 °C — rashguard or 2 mm. Clear reef water (10–40 m); sargassum Apr–Oct cuts visibility in places.

Is Isla Holbox good for a beginner?

Beginner-friendly: warm, clear reefs on calm days — ideal, but many no-take zones (hunt only outside the parks).

Do I need a licence in Isla Holbox?

In Isla Holbox spearfishing is legal but breath-hold only (freediving — NOM-017-PESC-1994 §4.5; no scuba/hookah), and an individual CONAPESCA permit is ALWAYS required, including from shore (the "from-the-beach, no permit" idea is a myth). Fish only (no lobster, conch or octopus — squid is the one exception), max 5 fish/day, and keep 250 m off swimmers and boats. Dorado, marlin, sailfish and roosterfish are reserved for rod-and-reel in the 50-mile belt — better not to spear them. Yucatán grouper closed season 1 Feb–31 Mar; totoaba is permanent no-take. See the guide.

Full guide: hurricanes and Nortes: seasonal spearfishing safety in Mexico
Coming soon

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