Today — sit it out — wave, wind and noticeable surge.
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
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.
Leave your email — and the moment a window opens at Chausey, 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.
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 mapEntry cove on the Grande Île de Chausey, rock 0–8 m, shore entry; 200–300 m fin along the rocks to the left of the beach; bass, pollack. ⚠️ strong tidal currents — set off 2 h before low tide.
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 appReef to the west, granite and kelp 3–16 m, shore/boat; bass, conger, lobster. Small coefficients.
Google MapsSmall islet to the west, granite and kelp 3–16 m, boat; bass, wrasse, conger. Slack water only.
Google MapsThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appIslet, granite and kelp 3–16 m, shore/boat; bass, wrasse, lobster. Outside the banned zone.
Google MapsDocumented zone, rock 8–17 m on a ~1.3 km circuit, boat; bass, pollack, lobster. Enter ~2h before low water, exit before the flood.
Google MapsThe 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.
Cameras, map and reference — to hand as you come up.
Chausey has rock entry points such as Pointe de la Tour, Anse de Port-Marie and Les Épails (sud-ouest de Grande Île). The Chausey archipelago is advanced ground, for those who can read the sea. Below you'll find each spot (access, shelter and hazards) and today's forecast.
Summer (June–September) — warmer water, calmer wind. Macro-tidal (up to 8–12 m at Chausey) — the window is set by slack, not the calendar; off the Cotentin capes (Hague, Barfleur) the currents are fierce.
Channel-cold: ~9 °C in winter, ~18 °C in summer. A 7 mm hooded suit is a must. Huge tides — moving water is almost always murkier than the sheltered coves at slack.
Technical and cold: tides up to 12 m, fierce currents off the Cotentin capes. Experienced only, planning around slack; not a beginner zone.
No paid licence in Chausey — 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.
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.
