Deba · Spain

5.3

wave 1.2 m

visibility3m

Today — right on the edge — wave, wind and surge pounding.

Sources: IPMA · buoys · Copernicus · Sentinel-2 — high confidence · data 12:48

Sources & confidence

Sources: IPMA · NDBC & IH buoys · Copernicus Marine · Sentinel-2
Method: spearo sea-state engine: 6-model consensus + satellite clarity (ZSD) + buoy-bias checks
Freshness: Re-read every hour, per coast

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.

How we score the water

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.

Swell & wave memory: Height, period and direction of the swell, plus the wake of recent storms — an old storm still stirs the water, and the engine remembers.
Wind & gusts: Speed and gusts, hour by hour — wind speed and an onshore push chop the surface and cut visibility.
Tide phase: Timing and range of the tide, calibrated per coast — big spring tides pull the verdict toward caution.
Water temperature: Sea-surface temperature — sharply cold water vetoes a green verdict.
Currents & outflow: Direction and drift of the current — it pushes you, and it drags turbid coastal water across where you dive.
Rain runoff & air clarity: Rain muddies the water inshore through land runoff, while fog and haze cut visibility at the surface.
Coast shape & exposure: How the coast faces the swell — a sheltered cove keeps the water clean; an exposed, head-on point takes a penalty.

Safety gates

Thunderstorm forecast — an instant red, no exceptions.
An official warning (MeteoAlarm / IPMA) — yellow, or red for the higher ranks.
Missing input data — a would-be green is capped to yellow rather than overstated.
Strong disagreement between forecast models — a green day is pulled back to yellow.
Night hours — where night spearfishing is banned by law the window is forced red; where it is legal (Australia outside NSW, New Zealand, South Africa) it is capped at yellow, never green.

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

Entry points with coordinates

Seabed relief — promising ground

This verdict — in your pocket. Open the app for the week's window.

Google Play — QR code — point your camera

0 m

Surface

Wind, wave and the swell windows — when to go and the best hours.

spearo.app

no dataupdated 12:48

Deba — solo, off the rocks

BORDERLINE

caution — solo off the rocks is risky, check on site · wave 1.2 m (occasionally up to ~2.4 m)

wave 1.2 mwind 13, gusts 34 km/hsurge pounding the rocksvisibility ~3 m

today, best window 15:00–18:00

fish · Visibility 3 m · Water 22.7°C

confidence low · verdict for the selected day

Whole week — tap a day. is driving swell right now.

Solo risk: carry a float · tell someone your plan and exit time · doubt = don't go. A model-based planner; the call is made on site.

Selected day

Windows, hours
and the day's trends.

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.

Wednesday · today2026-09-09

07:42–20:30 · new moon

▲ 04:00▼ 09:00▲ 16:00▼ 22:00mid-range tides · 3.6 m

Hours (06→20)

Day's trends

Tide-1.94 m

Wave1.12 m

Wind4 km/h

Water23 °C

fish activity: moonrise 05:30 · moderate · moon overhead 12:40 · high · moonset 19:44 · moderate · moon underfoot 00:00 · high

Conditions window12:00–15:00

don't go fish

Hs 1.26 m · roughperiod 6.2 s head-onwind 13→32surge 9.5viz 1 m

1.26 mrough · up to ~2.52 · 334° head-on

6.2 sswell moderate

13→32gusts 32 km/h

9.5pounding the rocks

0.00m/s

1 mrecent swell

22.7°C5 mm + hood

▲16:00tide rising

Atmosphere4 kmlandmarks visible

highmoon overhead

wave 1.3 m (occasionally up to ~2.5 m)
wind 13 km/h, gusts to 32 — caution
flood — water rising

confidence lowday

Open the seafloor map with entry points

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Where to get in
off the rocks.

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.

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ArranomendiDeba

borderline

⚠️ This point is inside the restricted zone “Biotopo Protegido Deba-Zumaia — Zona de Protección Marina (pesca no prohibida por el decreto)”: fishing there is regulated (season, gear, permit), not banned outright. Read the zone's rules before you go.

exposed head-on to the swell today (city-level)

window: Summer and autumn, at high water so you can get out up the wall, and with no northerly.
tide: Cantabrian regime, spring range up to 4.5 m. The Deba bar empties right alongside: on an ebb with the river up the water leaves turbid and fast.
shelter: Nothing in front and a wall behind: with a north-west groundswell there is nowhere to tuck in.
conditions: Wall and slabs from 5 to 14 m; the cleanest water in the municipality, 7-9 m, because the Deba is 1.3 km west.
hazard: IT IS INSIDE the biotope's Zona de Protección Marina (3,520 ha, out to the internal-waters line): Decreto 33/2009 does NOT forbid fishing in it. What is banned outright is the Zona de Reserva, and it starts 101 m east of this mark — one minute of finning. Look at the map before drifting that way, because the ebb sets exactly in that direction.
access: The flysch path to the end of the open stretch, 1.4 km from the beach, and down through the cleft.

The last open stretch before the Zona de Reserva; wall and slabs at 5-14 m. It is INSIDE the biotope's Zona de Protección Marina — 3,520 ha where fishing is not banned — and 101 m from the total closure.

Google Maps

Flysch de Deba (este de Santiago)Deba

borderline

⚠️ This point is inside the restricted zone “Biotopo Protegido Deba-Zumaia — Zona de Uso Especial (frentes urbanos de Deba y Zumaia)”: fishing there is regulated (season, gear, permit), not banned outright. Read the zone's rules before you go.

exposed head-on to the swell today (city-level)

window: May to November and at half-tide or better: on a spring low the slab is out of the water.
tide: Cantabrian regime, spring range up to 4.5 m. On the ebb the point sets up a clear outgoing current: go in inside it and come out outside.
shelter: The platform gives no lee: only a south land wind and under a metre of sea make it enterable.
conditions: Slabs and cracks from 4 to 10 m; the water clears sooner here than by the river, 5-7 m on a good day.
hazard: THIS MARK IS INSIDE the Zona de Uso Especial of the Biotopo Protegido Deba-Zumaia (Decreto 33/2009): the biotope decree does NOT forbid fishing here — it does that only in the Zona de Reserva — but it is worth knowing where you are standing. The Zona de Reserva starts 194 m east, and there fishing is banned outright. Deba beach is 470 m away and the rivermouth 643 m. censused bathing zone — from 1 Jun to 30 Sep art. 14.3 of Decreto 198/2000 bars spearfishing inside it and within 250 m
access: Along the flysch walkway east from Deba beach, 700 m, and in at the first wide crack.

The first slabs of the platform east of the beach, 470 m clear of the bathing zone; 4-10 m over flysch. It is INSIDE the biotope's Zona de Uso Especial, where fishing is not banned.

Google Maps

LapariDeba

borderline

⚠️ This point is inside the restricted zone “Biotopo Protegido Deba-Zumaia — Zona de Uso Especial (frentes urbanos de Deba y Zumaia) · Zona de baño censada «Deba» (Deba) + 250 m — pesca submarina prohibida (art. 14.3, Decreto 198/2000), 1 jun – 30 sep”: fishing there is regulated (season, gear, permit), not banned outright. Read the zone's rules before you go.

exposed head-on to the swell today (city-level)

window: October to May is when this mark gives its best: no swimmers, no seasonal restriction and the river low after the frosts.
tide: Cantabrian regime, spring range up to 4.5 m. The coves connect on foot only at low water; at full tide each one is an island.
shelter: No shelter at all; the central gully gives a little calm on a south-easterly and nothing else.
conditions: Stepped slabs from 3 to 9 m with deep cracks; 4-7 m of visibility, worse with the river up.
hazard: TWO THINGS AT ONCE. It is INSIDE the biotope's Zona de Uso Especial, where Decreto 33/2009 does not forbid fishing; and it is 244 m from the censused bathing zone of Deba beach, i.e. INSIDE the 250 m of art. 14.3 from 1 June to 30 September. Outside that season it is legal, good water. The Zona de Reserva — a total ban — starts 109 m east: the shortest margin in the whole wave, and one to check on the map. censused bathing zone — from 1 Jun to 30 Sep art. 14.3 of Decreto 198/2000 bars spearfishing inside it and within 250 m
access: Along the flysch walkway, 400 m from the beach; in by the steps cut into the slab.

Flysch platform east of the beach; slabs and gullies at 3-9 m. It sits 244 m from the Deba bathing zone — inside the 250 m in season — and 109 m from the Zona de Reserva.

Google Maps

Ondarbeltz — punta oesteDeba

borderline

exposed head-on to the swell today (city-level)

window: Two or three days after the last rain, and best from May to November.
tide: Cantabrian regime, spring range up to 4.5 m. On the flood the clean water comes up the gullies, and that is the good hour.
shelter: The point cuts the north-west just enough to leave the south side fishable with under a metre of sea.
conditions: Boulders and sand from 3 to 11 m; the Deba stains the whole stretch on every spate and takes two or three days to clear.
hazard: It is outside the biotope, outside the bathing zone (367 m) and outside the port (544 m) — the mark slid here from inside the Ondarbeltz zone. What there is: the Deba bar 500 m east, and on an ebb with the river up the current sets seaward. censused bathing zone — from 1 Jun to 30 Sep art. 14.3 of Decreto 198/2000 bars spearfishing inside it and within 250 m
access: From the Mutriku road, a short track to the point and in off the southern slab.

Rocky point west of the rivermouth, already on Mutriku's shore; black sand below and boulders above, 367 m clear of the Ondarbeltz bathing zone.

Google Maps

SOLO 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.

What's in season,
what the law says.

Minimum sizes by caladero (in the table below). Season depends on the species and place.

In season now

European seabass
Dicentrarchus labrax · Cantabrian & NW · RD 347/2011 art. 4 bis
gilthead seabream
Sparus aurata · Cantabrian & NW · RD 560/1995 Anexo I
salema / saupe
Sarpa salpa · Cantabrian & NW · RD 560/1995 Anexo I
⚠️ Do NOT eat the head/guts (ichthyosarcotoxism).
bogue
Boops boops · Cantabrian & NW · RD 560/1995 Anexo I
black seabream
Spondyliosoma cantharus · Cantabrian & NW · RD 560/1995 Anexo I
grey mullet
Mugil / Chelon spp. · Cantabrian & NW · RD 560/1995 Anexo I
red porgy
Pagrus pagrus · Cantabrian & NW · RD 560/1995 Anexo I
striped red mullet
Mullus surmuletus · Cantabrian & NW · RD 560/1995 Anexo I
common octopus
Octopus vulgaris · Cantabrian & NW · 1 kg
Talla por PESO: mín. 1 kg (RD 560/1995, todos los anexos). No coger hembras con huevos.
European conger
Conger conger · Cantabrian & NW · RD 560/1995 Anexo I
pollack
Pollachius pollachius · Cantabrian & NW · closed 1 Jan–30 Apr
Talla operativa 42 cm; máx. 2 ejemplares/día (medida recreativa anual de la UE, Reg. 2025/202). ⚠️ Atlantic: recreational CLOSED 1 Jan–30 Apr (catch-and-release).

Law

✓Spearfishing licence mandatory; the AUTONOMOUS COMMUNITY issues it (not the State) and it is valid in the exterior waters of the whole coast. Free-diving only — scuba is banned (, art. 3).
✓Spearfishing catch may not be sold or traded — it is non-commercial fishing ().
✓Night prohibited: spearfishing only in daylight (sunset to sunrise not allowed) — , art. 16.d.
✓Marker buoy MANDATORY: mark your position with a clearly visible buoy and stay within 25 m of it — , art. 15.
✓Never keep the speargun loaded out of the water — , art. 16.a.
✓Keep at least 300 m from professional fishing vessels that are working — , art. 12.b.
✓The state act (, art. 16) bans, for spearfishing: a loaded gun out of the water; explosive/electric points and lamps (hand torches excepted); underwater scooters; night — from sunset to sunrise. Plus art. 12 b), d), e): 300 m from professional fishing vessels, light as an attractant, poisons/explosives. A ban in a PARTICULAR reserve, port or beach comes from that place's OWN instrument (the reserve's order, the autonomous community's rules, the port authority) — see the no-take zones on the map and your community's rules.
✓Min. sizes by ( + + EU 2019/1241): sea bass 42 cm (rec.) / 36 cm / 25 cm Mediterranean / 22 cm Canaries; gilthead bream 20 cm and white seabream 23 cm in the Mediterranean (EU 2019/1241); grouper 45 cm. See your zone's species card.
✓Only species in Annex I of may be taken; keeping, landing or transporting undersized specimens is prohibited.
✓The licence needs a medical fitness certificate for free-diving and civil-liability insurance (or a federative licence, which includes it). Mandatory in the Basque Country/Murcia/Asturias/Galicia; the federative licence covers it in Galicia/Balearics/Cantabria; the Canaries and Andalusia do NOT require it for the individual licence (a responsible health declaration). Minimum age generally 16 (14 in Andalusia).

Safety protocol

Sets: watch the wave trains ≥15 min before entering; Hmax ≈ 2×Hs, the wash can run 50 m past the foam line. A lull >10 min with period >12 s = a big set «overdue», do NOT enter; enter right after a full set passes and re-check at minute 30.
Exit FIRST: find your exit AND a backup before entering. On a rocky/boulder shore a 0.5 m rise in swell can make the exit impossible — getting pinned/unable to climb out is the main killer.
Headland rip: prominent points often have a permanent topographic rip regardless of the model — locate it, enter/exit on the windward side, never swim against it.
Cold: wetsuit per the SST chip; the first shiver = a metabolic surge and a drop in breath-hold → get out at the first steady shiver. Cap the session at 45–60 min below 15 °C.
Solo discipline: buoy up; tell someone the spot and exit time; conservative breath-hold (never push it in cold/murky/surfy water); visibility <3 m — don't enter.
Afternoon wind: on many coasts the wind builds from midday — plan to be out of the water by midday; the chop builds — get out.
UV 11:00–15:00 (UVI ≥6): sunscreen and cover up on the surface interval.
Solo is a fundamental risk (hypoxic blackout with no buddy). Any doubt = No-go.

FAQ — spearfishing in Deba

Where can I spearfish in Deba?

Deba has rock entry points such as Ondarbeltz — punta oeste, Flysch de Deba (este de Santiago) and Lapari. Spearfishing in Deba: sea forecast and shore-entry spots. Below you'll find each spot (access, shelter and hazards) and today's forecast.

When is the best season in Deba?

Summer and early autumn are the windows — in winter the Bay of Biscay swell shuts the coast down. Tides are large (4 m+) and set up current, so pick a small-sea day with the tide in your favour.

How cold is the water in Deba?

~14–22 °C: cool, but it warms up in the summer window. A 5 mm suit at peak summer, 7 mm with a hood the rest of the year.

Is Deba good for a beginner?

Demanding: strong Biscay swell, big tides and exposed rock entries. It's for those who can already read the sea and pick the window well — not a coast to start on.

Do I need a licence in Deba?

Yes — in Deba you need a recreational sea-fishing licence (issued by the autonomous community); breath-hold only (no scuba), with a marker buoy and no night diving. See the guide.

Full guide: spearfishing in Spain →

Deba spearfishing forecast — wind, swell, visibility, tides & live cameras

Windows, hours and the day's trends.

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Help us make it better

A marine instrument, go / no-go for solo hunting.

The forecast is the plan.The call is on the rock.

Where to get in off the rocks.

What's in season, what the law says.

FAQ — spearfishing in Deba

Setúbal · Arrábida

Alentejo

Algarve

Madeira

Azores

Spain

Galicia

Cantabrian coast

Andalusia (Atlantic)

Andalusia (Med)

Murcia

Levante

Catalonia

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Canaries

🇮🇹Italy

Liguria

Tuscany

Lazio

Campania

Calabria

Apulia

Sicily

Sardinia

Central Adriatic

Abruzzo

Emilia-Romagna

Northern Adriatic

🇬🇷Greece

Attica · Saronic

Peloponnese

Crete

Cyclades

Dodecanese

NE Aegean

Sporades · Evia

Ionian

Halkidiki & Thermaikos

Thrace · Kavala

🇫🇷France

Hauts-de-France

Normandy

North Brittany

West Brittany

South Brittany

Pays de la Loire

Charente-Maritime

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French Basque Country

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Corsica

🇹🇷Turkey

Marmara

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South Aegean

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Central Mediterranean (Turkey)

Hatay (Gulf of İskenderun)

West Black Sea

Central Black Sea

East Black Sea

🇭🇷Croatia

Istria

Kvarner

Windows, hours
and the day's trends.

A marine instrument,
go / no-go for solo hunting.

The forecast is the plan.
The call is on the rock.

Where to get in
off the rocks.

What's in season,
what the law says.