Necochea spearfishing forecast — Argentina

Q: Where can you spearfish in Necochea?

The jetties, Costa Bonita and Playa de los Patos are the practical rock marks, only on small-sea days.

Q: Is visibility reliable?

No. It is often green and changes with groundswell, rain and sand movement.

Q: Which province regulates Necochea?

Buenos Aires province. Check the current provincial text before harvesting.

Q: Are the wrecks simple shore spots?

No. Treat wrecks as higher-planning dives, not casual shore entries.

Q: Are there no-take zones?

No local polygon is listed for these marks, but any official closure should be treated as closed.

Necochea · Argentina

5.3

wave 0.9 m

visibility3m

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

Sources: IPMA · NDBC · Copernicus — high confidence · data 16:39

Sources & confidence

Sources: IPMA · NDBC buoys · Copernicus Marine
Method: Model consensus, read per window
Freshness: Re-read every hour, per coast

Compiled by the spearo sea-state engine

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 — forced red; the window is closed after dark.

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.

Android: the public release is in Google Play review — leave your email and we'll send beta access today.

Android beta — QR code — point your camera

0 m

Surface

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

spearo.app

calmupdated 16:39

Necochea — solo, off the rocks

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caution — solo off the rocks is risky, check on site · wave 0.9 m + hitting the shore

wave 0.9 mwind 13, gusts 25 km/hsurge pounding the rocksvisibility ~5 m

today, best window 15:00–18:00

fish · Visibility 5 m · Water 10.6°C

confidence medium · 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 · today2026-07-22

08:04–17:57 · first quarter

▲ 00:00▼ 07:00▲ 12:00▼ 20:00mid-range tides · 1.1 m

Hours (06→20)

Day's trends

Tide0.02 m

Wave0.94 m

Wind14 km/h

Water11 °C

fish activity: moonset 02:13 · moderate · moon underfoot 07:20 · high · moonrise 12:20 · moderate · moon overhead 19:40 · high

Conditions window15:00–18:00

caution — solo off the rocks is risky, check on site fish

Hs 0.94 mperiod 7 swind 13→25surge 3.4viz 3 m

0.94 mup to ~1.88 · 187° at an angle

7 sswell moderate

13→25gusts 25 km/h

3.4pounding the rocks

0.11m/s

3 mrecent swell

10.6°Cthicker suit + hood

▼20:00tide falling

Atmosphere44 kmovercast

lowoff the lunar peaks

wave 0.9 m + hitting the shore
wind-wave — choppy surface
ebb — weaker inshore

confidence mediumtwilight

Open the seafloor map with entry points

Your best window — with you. Forecast in your pocket.

Android: the public release is in Google Play review — leave your email and we'll send beta access today.

−10 m

The water column

Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.

What it is

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

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 spots

−20 m

The seabed

Relief and bottom type, tides, and the depths of each spot.

On the rock

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

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.

Entry points

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.

Open the seafloor map

Escolleras Necochea–QuequénNecochea

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