Arraial do Cabo spearfishing forecast — wind, swell, visibility, tides & live cameras
Today — sit it out — wave, wind and noticeable surge.
Sources: IPMA · NDBC · Copernicus — high confidence · data 14:04
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
Surface
Wind, wave and the swell windows — when to go and the best hours.
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.
- wave 1.2 m (occasionally up to ~2.4 m)
- steep wind-wave — choppy surface, careful on entry
- ebb — weaker inshore
The water column
Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.
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.
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.
Surfacing
Cameras, map and reference — to hand as you come up.
Live cameras, map & reference
What's in season,
what the law says.
- fat snookState closed seasons: BA 15 May–31 Jul; ES 1 May–30 Jun; PR 1 Nov–31 Dec; SP — none.
- common snookState closed seasons: BA 15 May–31 Jul; ES 1 May–30 Jun; PR 1 Nov–31 Dec; SP — none.
- dusky grouper⚠️ Closed season 1 Nov–28 Feb (national). Size 47–73 cm. Vulnerable — go easy.
- gag grouper
- black grouper
- comb grouper
- snowy grouper⚠️ Closed 1 Sep–31 Oct (SE/S). Deepwater grouper.
- bluefish
- whitemouth croaker
- black drum
- lebranche mulletManaged by annual quotas/seasons. Min 35 cm; estuary bars may be restricted in season.
- king mackerel
- serra Spanish mackerel
- mahi-mahi
- greater amberjack
- crevalle jack
- silver porgy
- lionfishInvasive, spreading in NE Brazil. Culling encouraged. Venomous spines — careful; flesh edible.
- Atlantic goliath grouper🚫 Full moratorium since 2002, indefinite (CR, Portaria MMA 148/2022). Do not take, release it. Fine R$700–100,000 + gear seizure.
- ✓A is required (category B – boat covers apnea spearfishing), issued on gov.br by the . Exempt: under-18 accompanied, men 65+/women 60+.
- ✓Apnea only: spearing on a tank/scuba is banned (artificial breathing apparatus prohibited — IBAMA rule).
- ✓Goliath grouper (mero, Epinephelus itajara): total moratorium since 2002, renewed (in force 2026+). Never a legal target — capture/transport/sale is an environmental offence.
- ✓Closed seasons (vary by state): true grouper & badejo in the N/NE 1 Aug–30 Sep; bluefish in the S/SE ~1 Dec–31 Mar; robalo reopens after 31 Jul (state-dependent). Mind minimum sizes.
- ⛔ 🚫 Goliath grouper (Epinephelus itajara) — indefinite moratorium (CR). Not a legal target: do not take, release.
- ⛔ Hammerhead sharks (Sphyrna lewini/zygaena) and angel sharks (Squatina spp.) — red list, take banned. Don't shoot.
- ⛔ Sea turtles, whales/dolphins, seahorses — protected, taking/disturbing prohibited.
Rules change and vary by state. Before heading out, check on gov.br (recreational licence, MPA) and the state closed seasons/sizes; apnea only, goliath grouper is banned.
- 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 Arraial do Cabo: spots, seasons and rules
Spearfishing in Arraial do Cabo starts with the reserve rule, not with the blue water. The local registry has no verified spots for the city, so there is no spots table and no invented entry point. Arraial is still important because it shows Brazil's clearest upwelling water: NE wind can move warm water offshore and lift cold water from depth, giving excellent visibility. That does not open the Marine Extractive Reserve to visitors. Amateur spearfishing there is only for a Category C beneficiary with ICMBio authorisation. For tourists and visiting divers, the area is effectively closed for spearfishing. National Brazil rules still matter: licence required, apnea only, no scuba, and goliath grouper is never a legal target.
TL;DR
- Headline caveats: Arraial do Cabo has zero verified local spots and goliath grouper has a total moratorium in Brazil. There is no spotsTable and no invented entry point.
- The main water signal is upwelling: NE wind pushes warm surface water offshore and brings cold deep water up, sometimes with visibility above 15 m and up to 40 m at its best.
- The Arraial do Cabo Marine Extractive Reserve is the hard limit: amateur spearfishing is only for a Category C beneficiary with ICMBio authorisation. For visitors, treat it as closed.
- Brazil requires the MPA recreational licence, spearfishing is apnea only, and goliath grouper has a total moratorium. Do not take, transport or sell it.
Spearfishing Arraial do Cabo conditions today
Read the day from wind and swell first. The city is an upwelling coast, with NE wind as the classic trigger. When warm surface water is pushed out, colder deep water rises, and summer water can drop to 14 °C. That can mean clean water, but also a harder dive than the postcard suggests. The local bad swell sector is from the south, roughly 140 to 210 degrees. If that side is working, do not force a rocky exit or channel. Since there are no verified spots, the only responsible local call is conditions plus permission.
Underwater visibility in Arraial do Cabo today
Visibility is the reason Arraial is famous. The source data gives more than 15 m in good windows and up to 40 m at the best end. Treat those numbers as a water benchmark, not a hunting invitation. A clear reserve is still a reserve. April to October is the more reliable window in the base data; summer can also produce very clear water when upwelling is active, but it may be cold enough to catch unprepared divers out.
Spearfishing Arraial do Cabo cold clear upwelling water
The upwelling is the city signature. Coast shape, NE wind and nearby depth combine to drop temperature and raise transparency. That is useful for planning a freedive session, testing exposure protection or reading the wider Southeast Brazil pattern. It is not enough to create a legal hunting route. Without supported spot names, beaches, islets and headlands should not be turned into speargun advice. Use Arraial as a water reference and confirm the legal lane before any gun is loaded.
Arraial do Cabo Marine Extractive Reserve spearfishing allowed
For visitors, no. The registry note is specific: amateur spearfishing in the Arraial do Cabo Marine Extractive Reserve is only for a Category C beneficiary with ICMBio authorisation. Tourists and visiting divers should treat the area as closed. This caveat sits above every other local detail. Good visibility, local fish reports or a boat offer do not replace reserve authorisation.
Brazil spearfishing licence and goliath grouper rule
Brazil's national frame still applies. The MPA recreational fishing licence is required for the relevant category, and spearfishing is apnea only. Using scuba or an artificial breathing device to spear fish is prohibited under the IBAMA rule. Goliath grouper, the Brazilian mero, has a total moratorium in force and is never a recreational target. Also respect regional closed seasons, minimum sizes and protected species such as hammerhead sharks, angel sharks, sea turtles, whales, dolphins and seahorses.
FAQ
Can you spearfish in Arraial do Cabo?
For visitors, treat the Marine Extractive Reserve as closed. Amateur spearfishing is only for a Category C beneficiary with ICMBio authorisation.
What is the underwater visibility in Arraial do Cabo today?
It depends on wind, swell and upwelling. Good windows can pass 15 m and may reach 40 m, but visibility does not change the reserve rule.
What fish can you spear in Arraial do Cabo?
There is no supported local visitor target list. Under Brazil's national rules, goliath grouper is fully prohibited and other species depend on size and closed-season rules.
Can you spearfish in the Arraial do Cabo Marine Extractive Reserve?
Only if you are a Category C beneficiary and have ICMBio authorisation. Visiting spearos should treat it as closed.
When is the best season to spearfish in Arraial do Cabo?
As a water reference, April to October is the steadier window. As a visitor hunting inside the reserve, the legal restriction still controls the answer.
Do you need a licence to spearfish in Brazil?
Yes. The MPA recreational fishing licence is required for the relevant category, alongside any local protected-area rule.
Can you spearfish on scuba?
No. Brazil's spearfishing frame is apnea only; spearing with scuba or an artificial breathing device is prohibited.
Sources
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