San Carlos spearfishing forecast — wind, swell, visibility, tides & live cameras

San Carlos · Mexico
8.1
wave 0.2 m head-on
visibility4m

Dive todaywave, wind and visibility.

Sources: IPMA · NDBC · Copernicushigh confidence · data 00:33

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 00:33
San Carlos — 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 6 km/hvisibility ~6 mwindow 06:00–21:00
today, best window 06:00–09:00
fish · Visibility 6 m · Water 31.8°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.

Thursday · today2026-07-23
05:4219:19 · waxing gibbous
01:00 14:00 · 0.7 m
Hours (06→20)
06
09
12
15
18
Day's trends
Tide0.13 m
Wave0.18 m
Wind19 km/h
Water32 °C
fish activity: moonset 00:37 · moderate · moon underfoot 07:40 · high · moonrise 14:55 · moderate · moon overhead 20:10 · high
Conditions window06:00–09:00
best weather window · solo, stay careful, run the checklist fish
Hs 0.22 mperiod 9.3 s head-onwind 6→7surge 0.1viz 4 m
0.22 mup to ~0.44 · 154° head-on
9.3 sswell moderate
6→7gusts 7 km/h
0.1weak surge
0.06m/s
4 mrecent swell
31.8°C5 mm + hood
▲14:00tide rising
Atmosphere27 kmlandmarks visible
highmoon underfoot
  • calm conditions: swell, wind and visibility all normal
  • flood — water rising
confidence hightwilight
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
Isla San Pedro NolascoSan Carlos
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rocky island with sea lions, 5–30 m (vis to 60 m), by boat. Coords approximate, check your water entry.

Google Maps
Isla San Pedro Nolasco — El Cañón (N)San Carlos
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Island reef, 8–30 m — legal (outside reserves). Amberjack, cabrilla, wahoo, tuna.

Google Maps
Isla San Pedro Nolasco — Sea Lion Cove (S)San Carlos
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Island reef, 5–25 m — legal but inside an ANP buffer — verify the zoning. Amberjack, cabrilla, wahoo, tuna. Sea-lion colony — don't harass them.

Google Maps
Punta Doble / Catch-22 (San Carlos)San Carlos
borderline
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rocky reef, 5–20 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
Cameras · live

Look at the water
right now.

Check the cam BEFORE you leave. Foam, brown/green murk, or waves washing the entry rocks = No-go. At night/in fog the cam is useless — treat it as «unknown», NOT «green».

connecting to the stream…
● LIVE
San Carlos — Bahía (Sonora)Live — San Carlos — Bahía (Sonora). webcamsdemexico network camera (YouTube-live); the videoId rotates, so the stream is re-scraped on the fly by our proxy. Read the water before you go.camera: webcamsdemexico
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 · San Carlos

Spearfishing in San Carlos: spots, seasons and rules

Updated 2026-07-09 · By Oleksandr, spearfisher

Spearfishing in San Carlos Sonora is best treated as reef and boat logistics. Isla San Pedro Nolasco is the signature run: a rocky island with sea lions, 5-30 m depth and high-visibility potential. Punta Doble/Catch-22 is a 5-20 m rocky reef outside reserves. El Cañón reaches 8-30 m, while Sea Lion Cove is listed as legal but inside or near an ANP buffer, so verify zoning before loading a gun. National rules require a CONAPESCA/SADER permit, apnea only, one allowed speargun and five fish per day.

TL;DR

  • San Carlos is a Sea of Cortez reef base: San Pedro Nolasco, Punta Doble/Catch-22 and island reefs are the core options.
  • Sea lions are part of the San Pedro Nolasco plan; keep distance and do not disturb them.
  • Mexico requires a CONAPESCA/SADER permit, apnea only, one speargun and a five-fish daily limit.

Best spearfishing spots in San Carlos Sonora

Choose between the closer rocky reef and the island run. Around sea lions, keep distance and avoid interaction.

SpotTypeDepthLevelAccessNotes
Isla San Pedro NolascoRocky island with sea lions5-30 mIntermediate; boat-basedBoat from San CarlosThe main reference. Confirm entry, pickup and behavior around sea lions before diving.
Punta Doble / Catch-22Rocky reef5-20 mIntermediateConfirm local accessLegal outside reserves, with cabrilla, pez fuerte, barracuda and grouper noted.
El Cañón, San Pedro NolascoIsland reef8-30 mUpper intermediateBoat, north side of the islandMedregal, cabrilla, wahoo and tuna are listed; use a visible float and clear pickup plan.

What conditions matter in San Carlos?

The deciding factors are boat plan, wind and recovery. No nearby buoy is available, so use forecast wind, observed sea state and a conservative exit plan. If Sea Lion Cove zoning cannot be verified, do not shoot there.

FAQ

Do you need a CONAPESCA permit?

Yes. Mexico requires an individual recreational sport-fishing permit.

Is scuba spearfishing legal?

No. Spearfishing is apnea only.

Can you dive around sea lions?

Keep distance and do not disturb them. Do not shoot near animals.

What is the daily limit?

This guide uses the national five-fish daily limit.

Is San Pedro Nolasco shore access?

No. It is a boat run from San Carlos.

Sources

Nearby towns

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