Today — sit it out — wave, wind and surge pounding. 💧 Water should clear by Saturday (~4d) — tentative (distant windows uncertain)
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
Leave your email — and the moment a window opens at Plymouth, 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.
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: 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 mapSteps lead from the car park to the beach; swim right over sand or left into kelp and rock, typically up to 7 m at high tide. Best dived at high tide; at low tide the weedy beach makes entry slippery.
Google MapsEnter from the walkway by the paddling pool or below the bathing huts and swim along the seabed to cliffs at about 15–20 m; 30 m is easily reached. Diving needs prior approval from Plymouth port control, is best at high-water slack, and you should never surface offshore in the shipping channel.
Cameras, map and reference — to hand as you come up.
Recreational spearfishing in the sea is legal in the UK without a licence — breath-hold only is the norm. Never spear salmon, sea trout or eels (Salmon and Freshwater Fisheries Act 1975). Bass: catch-and-release only 1 Feb–31 Mar (rod and line), then 3 a day, 42 cm min. Check the local IFCA/Marine Scotland/DAERA rules — in Cornwall no spearfishing dusk to dawn or with scuba. No-take zones (Lundy, Lamlash Bay, Flamborough) are closed.
Walk down the slipway into the sheltered harbour over sand with a large central rock and rocky swim-throughs to the north, reaching 10–15 m. Boats use the harbour, so a surface marker buoy is essential.
Google MapsA boat dive on ledges around the island sloping from 15 to 30 m, with fingers of rock and sandy gullies.
Google MapsA steep path leads to a pebble-and-boulder beach; follow sandy gullies west-south-west to a maximum of about 10 m, with the left side shallow enough for snorkelling. South-westerly swell, discarded nets and pot lines are the hazards.
Google MapsA boat dive on a Second World War Liberty ship sunk in Whitsand Bay.
Google MapsA boat dive on the breakwater, 5–15 m, with rock and kelp on the seaward side and a sandy slope inside. Shipping channels lie at both ends, so stay close to the breakwater.
Google MapsRocky point, shore or boat. Strong tidal stream — dive the slack. Coords approx.
Google MapsWalk 100 m from the car park to the beach and wade in. Voluntary marine reserve — divers are asked to take nothing.
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.
Plymouth has rock entry points such as Fort Bovisand, Plymouth Breakwater (outer) and Great Mewstone. Plymouth Sound — the breakwater, Mewstone and Rame Head ring a big sheltered bay. Below you'll find each spot (access, shelter and hazards) and today's forecast.
May–October; south-westerly gales in winter; the water clears after calm spells and easterlies.
9–10 °C in March, 16–18 °C in August — 7 mm in winter, 5 mm in summer.
Limestone ledges, reefs and wrecks; strong tidal streams at Portland Bill, heavy boat traffic off Plymouth and Weymouth. No licence; bass rules and IFCA byelaws apply.
Plymouth: Recreational spearfishing in the sea is legal in the UK without a licence — breath-hold only is the norm. Never spear salmon, sea trout or eels (Salmon and Freshwater Fisheries Act 1975). Bass: catch-and-release only 1 Feb–31 Mar (rod and line), then 3 a day, 42 cm min. Check the local IFCA/Marine Scotland/DAERA rules — in Cornwall no spearfishing dusk to dawn or with scuba. No-take zones (Lundy, Lamlash Bay, Flamborough) are closed.
