Today — sit it out — wave, wind and surge pounding. 🌫 Murky all week after the storm — the water isn't settling
Sources & confidence
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.
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
Leave your email — and the moment a window opens at Belle-Île-en-Mer, we'll send the go / no-go verdict. Email is all we need.
What's missing? Tell us what you'd like to see — new spots, species, data or features. We read everything.
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: 3016 spots across 406 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 mapSheltered coves to the north, rock and sand 2–8 m, shore; good to start, bass and bream.
Google MapsRocky point, rock and kelp 5–18 m, shore; bass and pollack.
Cameras, map and reference — to hand as you come up.
transparency ~3 m · satellite, 2 days agosatellite estimate · may differ right at the shore
The full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appSW-exposed schist needles and drop-offs, 4–15 m, shore/boat; experienced only, swell and current.
Google MapsIslet to the south, boulders and kelp 4–17 m, shore/boat; bass.
Google MapsMore covered NE coast near the port, rock 3–10 m, shore; shelter in a westerly.
Google MapsThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appSOLO 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.
Rules change. Exact distances from beaches/ports and seasonal closures are set by the local préfecture maritime — check its arrêté and the DIRM/OFB zone map before heading out.
Belle-Île-en-Mer has rock entry points such as Pointe des Poulains / Sauzon, Le Palais NE and Port-Coton / Côte Sauvage. Brittany's largest island, ringed in schist: the SW Côte Sauvage drops straight into the Atlantic, while the NE coast toward Le Palais is gentler and more covered. Below you'll find each spot (access, shelter and hazards) and today's forecast.
Summer (June–September), with a longer shoulder in spring/autumn — South Brittany is more sheltered than the west. Meso-tidal; islands (Groix, Belle-Île) and gulfs (Morbihan) shelter you from the westerly swell.
Atlantic, a touch warmer than west Brittany: ~11 °C in winter, ~18–19 °C in summer. 5–7 mm. Behind the islands and in the gulfs the water is often clear on calm days.
Moderate: more sheltered than west Brittany, islands and gulfs give cover. Doable for confident divers on calm days; watch the tide and swell at the exposed spots.
No paid licence in Belle-Île-en-Mer — but third-party (RC) insurance is MANDATORY, and since 10/01/2026 a free EU registration + catch declaration (RECFishing app) applies from age 16. Breath-hold only (no scuba), buoy mandatory, no night; sizes by coast (bar 42 Atl. / 30 Med.), grouper and corb banned in the Med. See the guide.
