- window
- tide
- shelter
- hazard
- access
Open rock/sand coast to the west 0–10 m, shore; mullet/sea bass, away from the plumes, open north. Coords approx.
Google MapsDive today — 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 mapOpen rock/sand coast to the west 0–10 m, shore; mullet/sea bass, away from the plumes, open north. Coords approx.
Google MapsWest beach groynes, stone/sand 0–8 m, shore; sea bass/two-banded bream, keep off the plume, open north. Coords approx.
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.
Check the cam BEFORE you leave. Foam, brown/green murk, or waves washing the entry rocks = No-go. At night/in fog the cam is useless — treat it as «unknown», NOT «green».
Rules change and the 6/2 tebliğ renews in September 2028. Before heading out, check with the district agriculture directorate (il/ilçe müdürlüğü) and the coast guard (Sahil Güvenlik); as a tourist, get the permit or go with a licensed guide.
Samsun has rock entry points such as Atakum bunları and Alaçam. A big port city; fishing on the west coast: the Atakum groynes, Dereköy and Alaçam. Below you'll find each spot (access, shelter and hazards) and today's forecast.
Short season (June–September). Central Black Sea (Sinop, Samsun): cold, murky water, no tide. The Sinop peninsula shelters on either side depending on the wind — the best landmark on this coast.
~9 °C in winter, ~25 °C in summer at the surface. 5 mm in summer. Cold greenish water, no tide. The Sinop peninsula shelters you from the sea; visibility is best on its lee side.
Moderate: cold water, no tide, the Sinop peninsula gives shelter. For motivated divers in the short summer; pick the lee side and clear days.
In Samsun, tourists can't freely hunt alone — under the 6/2 tebliğ the lawful path is with a licensed boat/guide holding a 6/1 av-turizmi permit, or with a permit from the local il/ilçe müdürlüğü. Apnea only (no scuba), buoy mandatory, night banned, ≤5 kg / ≤3 fish per day. See the guide.
Leave your email — and the moment a window opens at Samsun, we'll send the go / no-go verdict. Email is all we need.
Every covered town has its own live forecast, cameras and entry points. Choose where you're diving.
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