- window
- tide
- shelter
- hazard
- access
NE crystal cove; shore, NE-exposed — calm/southerly days only. Coordinate approximate.
Google MapsToday — sit it out — wave, wind and noticeable surge.
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 mapNE crystal cove; shore, NE-exposed — calm/southerly days only. Coordinate approximate.
Google MapsCove with sand and deep water, "an ideal spot for spearfishing"; shore, SE lee. Coordinate = cove centre.
Google MapsSE bay, colourful reef walls — the prime meltemi lee; shore or boat. ⚠️ WWII German freighter in the bay = dive, not spear. Coordinate approximate.
Google MapsN white-pebble bay, rock margins; shore, N — blows out in the meltemi, fish it on a S wind. Coordinate approximate.
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».
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).
Andros has rock entry points such as Korthi bay, Apothikes and Zorkos. The northernmost Cyclade, 176 km of coast, with a notorious NW katabatic meltemi that hammers Gavrio/NW. 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 Andros — 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.
Leave your email — and the moment a window opens at Andros, 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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