- window
- tide
- shelter
- hazard
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Island reef 4–20 m — WARNING: Nature Reserve, regulated take; hunt outside the reserve. Estimated.
Google MapsToday — right on the edge — wave, wind and visibility.
Sources & confidence
Compiled by the spearo sea-state engine
The verdict comes from seven water factors and hard safety gates — not ten tabs. Go or stay.
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.
Safety gates
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
Wind, wave and the swell windows — when to go and the best hours.
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.
Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.
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 spotsRelief and bottom type, tides, and the depths of each spot.
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.
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 mapIsland reef 4–20 m — WARNING: Nature Reserve, regulated take; hunt outside the reserve. Estimated.
Google MapsCay/reef 3–12 m — legal, beginner–intermediate; snapper, grouper, lobster (by hand). Estimated.
Google MapsCay & patch reef, 2–8 m — legal (outside reserves). Lionfish, lobster (by hand only), snapper.
Google MapsReef, 3–12 m — legal (outside reserves). Grouper, snapper.
Google MapsDrop-off wall, 18–40 m — legal (outside reserves). Cubera snapper, grouper, pelagics.
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.
Cameras, map and reference — to hand as you come up.
Rules change. Before heading out, check with the DRNA (Departamento de Recursos Naturales y Ambientales) and the federal NOAA rules (50 CFR 622).
Ponce is a south-coast boat plan, not a simple beach entry. Cayo Cardona and Cayo Ratones offer 2-12 m reef in low south swell. Isla Gatas and Cayo Frío add coastal reef, while the La Guancha shelf wall drops to 18-40 m for advanced freedivers. Caja de Muertos is the legal warning: it is a Nature Reserve with regulated take, so do not frame it as open hunting water. Carry the DRNA recreational licence, avoid scuba-assisted spearfishing, keep the spear more than 30 m from shore, and treat unclear reserve lines as closed.
Cardona and Ratones are the manageable shallow options. The La Guancha drop is advanced wall diving. Caja de Muertos is handled as a reserve boundary warning, not a target list.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Cayo Cardona | Cay reef | 3-12 m | Beginner to intermediate | Boat from Ponce | Snapper, legal grouper and hand-taken lobster where allowed. Works best in low south swell. |
| Cayo Ratones | Patch reef | 2-8 m | Beginner to intermediate | Short boat run | Lionfish, snapper and hand-taken lobster. Watch swimmers, boats and any managed-zone edge. |
| Ponce shelf wall | Dropoff wall | 18-40 m | Advanced | Boat | Cubera snapper, legal grouper and pelagics. Not a substitute for crowded shallow cay water. |
Low S to SW swell, light early wind and clean water around the cays are the signal. Poor visibility around the cays should cancel shallow reef plans.
Visitors need the recreational licence. Hunt on breath-hold only, more than 30 m from shore. Night work is for lionfish. Nassau and goliath grouper, parrotfish and queen conch stay off the catch list.
Do not assume so. Treat the reserve as closed unless current official zoning clearly allows a specific outside area.
Yes. DRNA licensing applies to tourists.
No. It is advanced water.
No. Spearfishing is breath-hold only.
Fail closed and move outside.
Leave your email — and the moment a window opens at Ponce, we'll send the go / no-go verdict. Email is all we need.
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Sargassum: in seasonsargassum drifting in the regionsargassum season — NOAA/USF data