- window
- tide
- shelter
- hazard
- access
wreck on a wall; conger eel, scorpionfish. Bow 28 m, rest deeper — expert only.
Google MapsToday — 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 mapwreck on a wall; conger eel, scorpionfish. Bow 28 m, rest deeper — expert only.
Google Mapscurrent channel; sea bass, conger eel.
Google Mapsrocky cape, current on the point; dentex, amberjack.
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.
Rules change and fees/seasons are updated yearly. Before heading out, check the Ministry of Agriculture fisheries portal (ribarstvo.mps.hr) and get the SPORT licence (the annual via HSSRM/a club); a speargun without it is illegal.
Cres is more varied than a simple island shore guide. Rt Pernat is a rocky cape with current, listed for dentex and amberjack. The Lina wreck at Rt Pečen is a wall wreck with conger eel and scorpionfish; the bow is at 28 m and the rest is deeper, so it is marked for experienced divers only. Osorski kanal is a current channel listed for sea bass and conger eel. Access is not specified for the three rows, and the bad sea sector is 345-105 degrees.
Depth is the key separator here: only Lina gives a number, and that number changes the whole plan.
| Spot | Type | Depth | Level | Access | Notes |
|---|---|---|---|---|---|
| Rt Pernat | Rocky cape with current | No numeric depth listed | Medium; yellow safety rating | Not specified | Listed for dentex and amberjack. |
| Olupina Lina, Rt Pečen | Wreck on a wall | Bow 28 m, rest deeper | Expert only; yellow safety rating | Not specified | Listed for conger eel and scorpionfish. |
| Osorski kanal | Current channel | No numeric depth listed | Medium; yellow safety rating | Not specified | Listed for sea bass and conger eel. |
Cres sits in the northern Adriatic regime. The local aspect is about 90 degrees and the bad sector is 345-105 degrees, so north and east exposure matter. No river plume, webcam or nearby buoy is listed, which makes the shore check important. The Adriatic tide is small, but channels and capes still create current. Legally, Croatia requires a sport sea-fishing licence for spearguns, not the ordinary recreational licence. Spearfishing is breath-hold only, daylight only, minimum age 16, with a mandatory marker buoy and no more than two spearguns per diver. Grouper is closed from 1 July to 31 August.
No. The bow is listed at 28 m and the rest is deeper; the spot is marked expert only.
Dentex and amberjack are listed for the rocky cape with current.
Yes. It is described as a current channel.
Yes. Tourists can buy it, and the recreational licence is not enough for spearguns.
No. Access is not specified for the Cres spots.
Leave your email — and the moment a window opens at Cres, 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.
What's missing? Tell us what you'd like to see — new spots, species, data or features. We read everything.