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Rocky bay NW of Kea; sea bream and saddled bream, near a dive base.
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.
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: 1391 spots across 205 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 mapRocky bay NW of Kea; sea bream and saddled bream, near a dive base.
Google MapsSW, 400 m off Koundouros bay, reef top just 1.5 m below the surface → 45 m; shore-swim or boat, SW = meltemi lee, the top-rated Kea reef.
Google MapsRock/reef 20–30 m; boat, W coast, sheltered from N.
Google MapsSW bay, rock margins + sand; shore, SW lee. Coordinate = bay centre.
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.
National minimum sizes + a 150 g floor (in the table below); grouper 1/day. Spearfishing is closed all May (ΠΔ 373/1985).
Rules change, and the local Λιμεναρχείο (port authority) may impose local restrictions. Before heading out, check the current rules and the declared archaeological zones (ENALIA).
Kea has rock entry points such as Koundouros reef, Ksyla bay and Pisses. The closest Cyclade to Attica (day-trip from Lavrio); katabatic meltemi and a wall of famous deep wrecks. Below you'll find each spot (access, shelter and hazards) and today's forecast.
June to October (May closed nationally), but July–August bring the meltemi — the north wind that can shut the exposed sides for days; dive the lee.
Some of the clearest, deepest water in the Aegean — bright blue, tideless, 15–30 m visibility; but wind-chopped when the meltemi runs.
Intermediate to advanced: gorgeous water but real wind exposure and deep, open dives — respect the meltemi and pick the sheltered island side.
No paid licence is needed in Kea — the amateur one was abolished (Law 4256/2014), but a free ΟΣΠΑ registration is being introduced (check gov.gr). Breath-hold only (no scuba), a mandatory «Υ.Δ.» buoy, 16+, daytime only, and the whole of May is closed. See the guide.
The species cards list 22 species with real presence in this basin; the strongest here are dusky grouper, common dentex, red porgy, white seabream, saddled seabream and greater amberjack. Minimum sizes in Greece are NATIONAL, not local: dusky grouper 45 cm · red porgy 18 cm · white seabream 23 cm · white grouper 45 cm · goldblotch grouper 45 cm · wreckfish / stone bass 45 cm · striped seabream 20 cm · common octopus 750 g. Species with no EU size carry the 150 g floor only. Grouper (Epinephelus) — max 1/day, not banned (ΠΔ 373/85, art. 2§2).
Yes. May is a TOTAL spearfishing ban for the whole month, every year, across Greece (ΠΔ 373/1985, art. 3§1α) — so in Kea too. It is law in force, not a draft, and there is no local exemption. Plan June to April.
The daily limit is 5 kg, or one trophy heavier than the limit (ΠΔ 373/85, art. 2§2). Grouper (Epinephelus) — max 1/day. Every fish must be at least 150 g (art. 3§2στ), and selling a recreational catch is prohibited (art. 1§7). The limit is national — in Kea it is the same as everywhere in Greece.
No. Freediving only: scuba and any air-supply apparatus are banned — they may not even be carried aboard (ΠΔ 373/85, art. 3§2γ). In Kea the rest of the national frame applies too: 16+, daytime only, ≥200 m from bathers, harbours, moored vessels and marked nets, and a mandatory «Υ.Δ.» buoy you stay within 50 m of. Pneumatic and band guns are allowed; only powerheads are banned.
Leave your email — and the moment a window opens at Kea, we'll send the go / no-go verdict. Email is all we need.
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