Today — right on the edge — 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 mapSheltered rock-sand bay; the offshore Bora clears the water. Northern Adriatic tide is active here.
Google MapsRocky Trieste-Karst cove, fishermen's path; sea bream and sea bass, stepped bottom.
Google MapsThe only true rocky coast of the upper Adriatic; limestone cliffs in the very clear Gulf of Trieste water.
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. Before heading out, check with MASAF (registration) and the Guardia Costiera / Capitaneria di Porto; Sicily and Sardegna add regional tightening.
Spearfishing in Duino-Sistiana is different from most Italian west-coast entries. The local note calls the Duino cliffs the only true rocky coast of the upper Adriatic, with limestone and very clear Gulf of Trieste water. Sistiana adds rock-sand shelter, offshore Bora cleaning and active northern Adriatic tide. The coast faces 200 degrees, with 155-245 degrees as the bad sector.
All three are yellow, medium solo-severity shore entries and are not marked protected in the city entry.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Falesie di Duino | Limestone cliffs on the Gulf of Trieste | Rock wall; no number listed | Intermediate; verify sea state in person | Shore entry along Duino coast | Listed as the only true rocky coast of the upper Adriatic, with very clear water. |
| Baia di Sistiana | Sheltered rock-sand bay | Rock and sand; no numeric depth | Intermediate; read tide and boats | Shore entry in the bay | Offshore Bora can clear the water; northern Adriatic tide is active. |
| Canovella degli Zoppoli | Rocky Trieste-Karst cove | Stepped bottom | Intermediate via fishermen's path | Fishermen's path, then shore entry | Sea bream and sea bass on stepped ground. |
Avoid the 155-245 degree sector, especially around 215 degrees. Offshore Bora can improve Sistiana visibility, but it does not remove current, return-route or buoy discipline. Unlike many Mediterranean entries, northern Adriatic tide is active here and should be part of the timing.
No paid license, but the free MASAF declaration via SIAN/SPID is mandatory.
Yes. The Duino-Sistiana is Duino-Sistiana as northern Adriatic, with active tide.
No. Italian spearfishing is freediving only, from age 16.
Stay 500 m from beaches with bathers and 100 m from fixed gear, set nets and anchored vessels outside ports.
No. Spearfishing is limited to dawn through sunset.
Leave your email — and the moment a window opens at Duino-Sistiana, we'll send the go / no-go verdict. Email is all we need.
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transparency ~2 m · satellite, 2 days agosatellite estimate · may differ right at the shore
