Today — sit it out — wave, wind and noticeable surge. 💧 Water looks set to clear by Friday (~5d) — tentative
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 Saint-Aubin-sur-Mer (Seine-Maritime), 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 mapThe full spot briefing is part of the subscription: entry, bottom, hazards, tide window.
Open in the appCameras, map and reference — to hand as you come up.
transparency nearby ~9 m · satellite, 2 days agosatellite estimate · may differ right at the shore
A field of concrete groynes along the shingle beach, −4.1 m LAT 800 m out (+8–9 m at high water), entry from the slipway. On the fish: bass, grey mullet and sole. ⚠️ a river-mouth fishing reserve right next door: read the legal ground off the zone map, not by eye. ⚠️ the platier dries: work the window around high water or you walk. Bass: spearfishing CLOSED 01.02–31.03 (ICES 4c/7d); outside the window, 3 fish per day per hunter, minimum landing size ≥ 42 cm.
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 appA headland that breaks the current, rock at its foot, −8.6 m LAT 800 m out (+8–9 m at high water), pebble entry. On the fish: bass, ballan wrasse and European lobster. Crustaceans by HAND only — no speargun, no pole-spear (R921-92 II.5). ⚠️ the current strengthens on the headland: slack water only. ⚠️ rockfall: stay more than 100 m off the cliff foot. Bass: spearfishing CLOSED 01.02–31.03 (ICES 4c/7d); outside the window, 3 fish per day per hunter, minimum landing size ≥ 42 cm.
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.
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.
Saint-Aubin-sur-Mer (Seine-Maritime) has rock entry points such as Pointe de la Pointue (Sotteville), Le Grand Sable and Le Grand Sable (est). A mini-valleuse with a slipway and seven groynes — not to be confused with the Saint-Aubin-sur-Mer in the Calvados (14), on the D-Day beaches. 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 Saint-Aubin-sur-Mer (Seine-Maritime) — 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.
