Rosario Islands spearfishing forecast — wind, swell, visibility & live cameras

spearo.app / Colombia / Rosario Islands
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⚠ Spearfishing banned here. PNN Corales del Rosario y San Bernardo (Bolívar) — Spearfishing banned in this protected marine zone. Verify with the local act/authority. Boundaries approximate (conservative outline) — verify with the managing authority.
◈Rosario Islands · Colombia
5.3
visibility: 4 m
visibility~4m

Dayisover

Today — right on the edge.

Sources: Open-Meteo · Copernicus — high confidence · data 22:18

Sources & confidence

Sources
Open-Meteo · Copernicus
Method
spearo sea-state engine: consensus of up to 6 models + satellite clarity (ZSD) + buoy-bias checks
Freshness
Re-read every hour, per coast

Compiled by the spearo sea-state engine · How it works →

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.

01
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.
02
Wind & gusts
Speed and gusts, hour by hour — wind speed and an onshore push chop the surface and cut visibility.
03
Tide phase
Timing and range of the tide, calibrated per coast — big spring tides pull the verdict toward caution.
04
Water temperature
Sea-surface temperature — sharply cold water vetoes a green verdict.
05
Currents & outflow
Direction and drift of the current — it pushes you, and it drags turbid coastal water across where you dive.
06
Rain runoff & air clarity
Rain muddies the water inshore through land runoff, while fog and haze cut visibility at the surface.
07
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 — where night spearfishing is banned by law the window is forced red; where it is legal (Australia outside NSW, New Zealand, South Africa) it is capped at yellow, never green.

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.

Entry pointsNo-take zones

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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Spots in Colombia

🇨🇴Colombia

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Nearby towns

  • Cartagena
  • San Bernardo Islands
  • Santiago de Tolú
  • Coveñas
  • Puerto Colombia

Central Caribbean

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Caribbean · Gulf

  • Sapzurro
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Caribbean · Guajira

  • Palomino
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  • Cabo de la Vela

Pacific (Colombia)

  • Bahía Solano
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  • Nuquí
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spearo.app · a private marine instrument · Rosario Islands · a planner, not a safety guaranteePrivacy
Today
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0 m

Surface

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

spearo.app
updated 22:18
Rosario Islands — solo, off the rocks
Day is over
⛔ Banned here
That is it for today — the day's windows have closed.
Tomorrow, best window 06:00–09:00
Best window · next 3 days
borderlinetomorrow · 15:00–18:00
you can see ~5 m ahead fish

ℹ️ Conservative visibility estimate kept

〜 tide is minor here bite times: 09:20–11:20 · 16:02–17:02

Tell me when it's on

Just your email — nothing else needed.

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.

Saturday · today2026-10-24
05:52–17:41 · full moon
▼ 02:00▲ 09:00▼ 17:00▲ 19:00 · 0.2 m
Hours (06→20)
06
09
12
15
18
Day's trends
Tide0.24 m
Wave0.42 m
Wind13 km/h
Water30 °C
fish activity: moonset 04:18 · moderate · moon underfoot 10:20 · high · moonrise 16:32 · moderate · moon overhead 22:50 · high
Open the seafloor map with entry points →

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

Download on theApp StoreGET IT ONGoogle Play
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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: 3016 spots across 406 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.

⛔ Banned here

Open the seafloor map →
Isla Grande (perímetro exterior)Rosario Islands
borderline
⛔ Banned here
swell on the quarter today
window
—

High-viz reef INSIDE the PNN — conditions reference only, extraction regulated. Verify Intangible Zones. Coords approx.

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.

Download on theApp StoreGET IT ONGoogle Play
Google Play — 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
  • lionfish
    Pterois volitans · 3–40 m · invasive — target
    ✅ The only clearly-legal speargun target (Res 0549/2022 Art.5 — invasive/exotic). Culling encouraged (Armada + CORALINA). Edible; venomous spines — careful.
  • snapper
    Lutjanus spp. · 3–30 m · ❓ consulta AUNAP
    ❓ The legality of spearing native species in Colombia is not confirmed in text (grey zone). Res 0549/2022 only authorises the speargun for invasives. Check AUNAP rules; in MPAs/Seaflower — banned.
  • king/Spanish mackerel
    Scomberomorus spp. · 1–25 m · ❓ consulta AUNAP
    ❓ The legality of spearing native species in Colombia is not confirmed in text (grey zone). Res 0549/2022 only authorises the speargun for invasives. Check AUNAP rules; in MPAs/Seaflower — banned.
  • jack / trevally
    Caranx spp. · 0–25 m · ❓ consulta AUNAP
    ❓ The legality of spearing native species in Colombia is not confirmed in text (grey zone). Res 0549/2022 only authorises the speargun for invasives. Check AUNAP rules; in MPAs/Seaflower — banned.
  • snook
    Centropomus undecimalis · 0–15 m · ❓ consulta AUNAP
    ❓ The legality of spearing native species in Colombia is not confirmed in text (grey zone). Res 0549/2022 only authorises the speargun for invasives. Check AUNAP rules; in MPAs/Seaflower — banned.
  • great barracuda
    Sphyraena barracuda · 0–25 m · ❓ consulta AUNAP
  • Juanchaco

    • Islands (Colombia)

    • San Andrés
    • Providencia

    spearo.app — All countries

    transparency ~9 m · satellite, 2 days agosatellite estimate · may differ right at the shore

    ❓ Native species — grey zone (see AUNAP). Large individuals — ciguatera risk.
  • mahi-mahi
    Coryphaena hippurus · 0–30 m · ❓ consulta AUNAP
    ❓ The legality of spearing native species in Colombia is not confirmed in text (grey zone). Res 0549/2022 only authorises the speargun for invasives. Check AUNAP rules; in MPAs/Seaflower — banned.
  • Nassau grouper
    Epinephelus striatus · 3–35 m · ⚠️ release
    ⚠️ On Colombia's Red List (EN/CR). No formal ban, but please release it.
  • goliath grouper
    Epinephelus itajara · 1–30 m · ⚠️ release
    ⚠️ On Colombia's Red List (EN/CR). No formal ban, but please release it.
    • Law
    • ✓AUNAP sport-fishing permit (personal, non-commercial). KEY: the speargun is legal ONLY for exotic/introduced species → lionfish is the clearly legal target; for native species legality is a grey zone (consult AUNAP). Apnea, one band speargun, no night, no scuba.
    • ✓PNN Tayrona (next to Santa Marta) = no-take: fishing banned since 1959, and additionally closed in Feb 2026. Spearing there is prohibited.
    • ⛔ 🚫 Parrotfish (Scaridae) and surgeonfish — banned in San Andrés/Seaflower (CORALINA Res 369/2019). Don't shoot.
    • ⛔ 🚫 Sharks and rays — directed take banned (Res AUNAP 0744/2012, 190/2013, 01743/2017). Release.
    • ⛔ ⚠️ Goliath (E. itajara, CR) and Nassau grouper (E. striatus, EN) — Red List; release.
    • ⛔ Queen conch (Lobatus gigas) and spiny lobster (Panulirus) — closed season + size, by hand only, no speargun; conch export banned.
    • ⛔ 🚫 In (PNN Tayrona, Corales del Rosario, Malpelo, Gorgona, Utría, Old Providence) and across Seaflower, spearguns are BANNED for tourists.

    Rules change. Before heading out, get the AUNAP sport-fishing permit; with a speargun the lionfish is the only clearly legal target — for natives consult AUNAP. PNN Tayrona is no-take.

    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 Rosario Islands

    Where can I spearfish in Rosario Islands?

    Rosario Islands has rock entry points such as Isla Grande (perímetro exterior). The Rosario archipelago, 20 km from Cartagena, has excellent clarity and reef, but sits entirely inside PNN Corales del Rosario y San Bernardo, with Intangible Zones where extraction is banned. Below you'll find each spot (access, shelter and hazards) and today's forecast.

    When is the best season in Rosario Islands?

    Fishable year-round; the dry season (Dec–Apr) and the windless mid-year bring the clearest water to the islands.

    How cold is the water in Rosario Islands?

    Warm, ~27–29 °C — rashguard. Very clear coral water around San Andrés, Providencia and the Rosario islands.

    Is Rosario Islands good for a beginner?

    Beginner-friendly clear reef, but strongly protected — Seaflower and the Rosario/San Bernardo parks set strict no-take zones.

    Do I need a licence in Rosario Islands?

    In Rosario Islands, sport spearfishing is a grey zone: Res AUNAP 0549/2022 authorises the speargun mainly against lionfish (invasive) — spearing native species is not confirmed in the text. You need a pesca deportiva permit (AUNAP); breath-hold only (one speargun, no scuba), no night. In the parks (Tayrona, Rosario, Malpelo, Gorgona) and across Seaflower (San Andrés) spearguns are banned for tourists. Check AUNAP rules and see the guide.

    Full guide: spearfishing in Colombia →
    Data partners
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