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Wall under a cliff, from shore. Strong tidal streams — dive the slack. Coords approx.
Google MapsToday — right on the edge — wave, wind and visibility.
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 Allinge, 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 mapWall under a cliff, from shore. Strong tidal streams — dive the slack. Coords approx.
Google MapsHarbour wall or pier with rock armour, from shore. Coords approx.
Google MapsWall under a cliff, from shore. Coords approx.
Google MapsGranite rocks, from shore. Coords approx.
Google MapsGranite rocks, from shore. 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.
Denmark: spearfishing is legal on breath-hold only, in salt water, with an angling licence (lystfiskertegn; not needed under 18 or from state-pension age, and a valid fritidsfisketegn also covers it — BEK 1429/2024 §§2–3); no scuba, and the spear only from sunrise to sunset (Fiskeristyrelsen). Respect minimum sizes, closed seasons and the 500 m protection belts at stream mouths; the catch may not be sold and eel may not be hunted. No recreational cod in the western Baltic (ICES SD 22–26) in 2026. Check current rules locally.
Allinge has rock entry points such as Hammeren (Hammerodde), Hammerhavn and Sandvig. Allinge: a north-facing stretch of the Baltic — granite slopes and boulder fields. Below you'll find each spot (access, shelter and hazards) and today's forecast.
June–September.
3–4 °C in winter, 16–18 °C in August; visibility 5–10 m — the best in Denmark.
Moderate: granite shores open to Baltic winds; no cod in 2026.
Allinge: Denmark: spearfishing is legal on breath-hold only, in salt water, with an angling licence (lystfiskertegn; not needed under 18 or from state-pension age, and a valid fritidsfisketegn also covers it — BEK 1429/2024 §§2–3); no scuba, and the spear only from sunrise to sunset (Fiskeristyrelsen). Respect minimum sizes, closed seasons and the 500 m protection belts at stream mouths; the catch may not be sold and eel may not be hunted. No recreational cod in the western Baltic (ICES SD 22–26) in 2026. Check current rules locally.
transparency ~5 m · satellite, yesterdaysatellite estimate · may differ right at the shore