Cabo Blanco Oil RigCabo Blanco
closedexposed head-on to the swell today
- window
- tide
- shelter
- hazard
- access
Oil platform turned artificial reef, dive spot; within the Grau reserve sector — advisory. Coords approx.
Google MapsCabo Blanco spearfishing forecast — wind, swell, visibility, tides & live cameras
2.5
wave 1.3 m head-on
visibility1m
Today — sit it out — wave, wind and surge pounding.
Sources: IPMA · NDBC · Copernicus — high confidence · data 14:14
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
Surface
Wind, wave and the swell windows — when to go and the best hours.
spearo.app
calmupdated 14:14
Cabo Blanco — solo, off the rocks
don't go · wave 1.3 m (occasionally up to ~2.7 m)
wave 1.3 m head-onwind 31, gusts 53 km/hsurge pounding the rocksvisibility ~1 m
today, best window 12:00–15:00
fish · Visibility 1 m · Water 23.9°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
06:34–18:28 · first quarter
▼ 03:00▲ 09:00▼ 16:00▲ 22:00 · 0.9 m
Hours (06→20)
12
15
18
Day's trends
Tide0.57 m
Wave1.36 m
Wind27 km/h
Water24 °C
fish activity: moonset 00:47 · moderate · moon underfoot 06:50 · high · moonrise 12:58 · moderate · moon overhead 19:20 · high
Conditions window12:00–15:00
don't go fish
Hs 1.34 mperiod 9.7 s head-onwind 31→53surge 8.5viz 1 m
1.34 mup to ~2.68 · 223° head-on
9.7 sswell moderate
31→53gusts 53 km/h
8.5pounding the rocks
0.28m/s
1 mrecent swell
23.9°C5 mm + hood
▼16:00tide falling
Atmosphere31 kmlandmarks visible
moderatemoonrise
- wave 1.3 m (occasionally up to ~2.7 m)
- steep wind-wave — choppy surface, careful on entry
- ebb — weaker inshore
confidence mediumday
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 spotsThe 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
Caleta Cabo Blanco (El Alto)Cabo Blanco
closedexposed head-on to the swell today
- window
- tide
- shelter
- hazard
- access
Rocky reef off Cabo Blanco cove (El Alto), RN Mar Tropical de Grau sector; Humboldt×El Niño meeting point, high biomass. Historic big-game. Coords approx.
Google MapsRoquerío de Cabo BlancoCabo Blanco
closedexposed head-on to the swell today
- window
- tide
- shelter
- hazard
- access
Cape rock reef, Humboldt×warm meeting point, big biomass; Grau reserve sector — verify core. Coords approx.
Google MapsSOLO 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.
Surfacing
Cameras, map and reference — to hand as you come up.
Live cameras, map & reference
Open the seafloor map →What's in season,
Reference
What's in season,
what the law says.
In season now
- murique grouper
- flag cabrilla
- Peruvian gruntReproductive closure in December — don't take it that month. Sale of the catch banned.
- Pacific drumClosure in April — don't take it that month.
- Peruvian morwong
- fine flounder
Law
- ✓Recreational fishing needs no PRODUCE permit, BUT spearfishing requires a DICAPI diver card/registration (Coast Guard), 18+. Spearing on scuba is banned.
- ✓RN Mar Tropical de Grau (Máncora/Tumbes/Piura) = protected area with restrictions; check the sectors before shooting.
- ⛔ 🚫 Seahorse, whale shark and manta ray — take banned. Don't shoot.
- ⛔ 🚫 RN Mar Tropical de Grau (D.S. 003-2024-MINAM), Paracas NR, San Fernando NR and RNSIIPG (guano islands/points) — no-take core zones: no hunting inside the rings.
Rules change. Before heading out, get the DICAPI diver card/registration (Coast Guard) — spearing on scuba is banned; check the sectors of RN Mar Tropical de Grau.
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.
Spearfishing in Cabo Blanco: spots, seasons and rules
The short guide to Cabo Blanco is local and cautious. A big-game legend (Hemingway fished here): where cold Humboldt meets the warm current, brutal abundance over rock reef and the old oil rig. Pick the water that lets you exit cleanly, not the famous name, and confirm every boundary before loading. Alongside the DICAPI card, northern reserve sectors in Mar Tropical de Grau must be checked before take. Avoid Roquerío de Cabo Blanco, Cabo Blanco Oil Rig, Caleta Cabo Blanco (El Alto) where it overlaps core, breeding-fauna or closed sectors; confirm with SERNANP in reserve water.
TL;DR
- Cabo Blanco: meeting currents, an old platform and the Mar Tropical de Grau reserve.
- Southwest swell on an open coast makes a dawn start count; cold upwelling can sharpen clarity while it drops the temperature.
- A DICAPI card is only the start; the northern Grau reserve sectors each need clearing before you take.
Cabo Blanco sectors that need confirmation first
All local points sit in the Mar Tropical de Grau reserve context, so this is not a free-spots list. Use the names to ask SERNANP, DICAPI and a local operator before any take.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Roquerío de Cabo Blanco | reef | shallow to mid-depth | Intermediate | shore entry, only in small seas | Cape rock reef, Humboldt×warm meeting point, big biomass; Grau reserve. Confirm the sector line before loading. |
| Cabo Blanco Oil Rig | reef | shallow to mid-depth | Intermediate | shore entry, only in small seas | Oil platform turned artificial reef, dive spot; within the Grau. Treat it as a dive site until a local says otherwise. |
| Caleta Cabo Blanco (El Alto) | reef | shallow to mid-depth | Intermediate | shore entry, only in small seas | Rocky reef off Cabo Blanco cove (El Alto), RN Mar. Check the reserve boundary with SERNANP first. |
How should a visitor approach Cabo Blanco?
Use local confirmation, not guesswork. The worst sea is from SW; the coast is exposed, so dawn matters; upwelling can clear and cool the water at the same time. Ask which sector is outside parks, what species are accepted and how enforcement is handled. On the reef, the draw is real but the margin is narrow. The cape rocks and El Alto cove sit in the Mar Tropical de Grau reserve context, while the old platform is an artificial reef and dive site rather than automatic hunting water. Use the upwelling signal carefully: colder water can mean better clarity, yet the exposed return still decides the session. Murique grouper, cabrilla, pintadilla and flounder are the rock-and-sand references; chita and lorna need the calendar checked before any shot.
FAQ
Do you need the DICAPI card in Cabo Blanco?
Yes, and it is only step one. The northern sectors of the Mar Tropical de Grau reserve still have to be cleared with SERNANP before you take anything.
Is scuba spearing allowed in Peru?
No. DICAPI card plus breath-hold is the conservative line.
Which Peru closures matter near Cabo Blanco?
For Peru, the city check includes chita December and lorna April.
How should you read visibility at Cabo Blanco?
Read the swell first: a southwest sea leaves this exposed coast churned, so a dawn session usually wins. Once upwelling sets in, expect clearer but noticeably colder water.
What should be treated as off limits near Cabo Blanco?
Avoid Roquerío de Cabo Blanco, Cabo Blanco Oil Rig, Caleta Cabo Blanco (El Alto) where it overlaps core, breeding-fauna or closed sectors; confirm with SERNANP in reserve water.
Sources
Nearby towns
Coming soon
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