Chasse sous-marine à Sesimbra — vent, houle, visibilité, marées et caméras en direct
◈Sesimbra · Portugal
8.2
vague 0.7 m
visibilité~5m
Tupeuxplonger
Dive aujourd'hui — vague, vent and visibilité.
Sources:IPMA · NDBC · Copernicus — high confidence · data 01:37
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
Le verdict vient de sept facteurs de l'eau et de verrous de sécurité — pas de dix onglets. Y aller ou pas.
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.
01
Houle et mémoire de la vague
Hauteur, période et direction de la houle, plus le sillage des tempêtes récentes — une vieille tempête trouble encore l'eau, et le moteur s'en souvient.
02
Wind & gusts
Speed and gusts, hour by hour — wind speed and an onshore push chop the surface and cut visibility.
03
Tide phase
Timing and range of the tide, calibrated per coast — big spring tides pull the verdict toward caution.
04
Water temperature
Sea-surface temperature — sharply cold water vetoes a green verdict.
05
Currents & outflow
Direction and drift of the current — it pushes you, and it drags turbid coastal water across where you dive.
06
Rain runoff & air clarity
Rain muddies the water inshore through land runoff, while fog and haze cut visibility at the surface.
07
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.
Où entrer et où chercher le poisson
Points d'entrée avec coordonnées
Relief du fond — zones prometteuses
Ce verdict — dans ta poche. Ouvre l'app pour la fenêtre de la semaine.
Toute la semaine — touchez un jour. lève de la houle en ce moment.
›
Risque du solo : emportez une bouée · prévenez quelqu'un de votre plan et de votre heure de sortie · le doute = on n'y va pas. Un planificateur basé sur les modèles ; la décision se prend sur place.
Jour sélectionné
Créneaux, heures et les tendances du jour.
Le jour se choisit plus haut, dans le hero. Voici les créneaux de ce jour, la carte heure par heure et les tendances. Touchez un créneau pour détailler les conditions.
jeudi · aujourd'hui2026-07-23
06:31–20:54 · premier quartier
▼ 04:00▲ 10:00▼ 17:00▲ 23:00 · 1.1 m
Heures (06→20)
06
09
12
15
18
Tendances du jour
Marée0.07 m
Vague0.76 m
Vent12 km/h
Eau19 °C
activité du poisson : coucher de lune 01:12 · modérée · lune au nadir 08:40 · forte · lever de lune 16:20 · modérée · lune au zénith 21:00 · forte
Fenêtre de conditions06:00–09:00
meilleur créneau météo · en solo, restez prudent, suivez la checklist poisson ·
Hs 0.66 mpériode 4.1 svent 7→14ressac 0.3visi 5 m
0.66 mjusqu'à ~1.32 · 300° en biais
4.1 shoule modérée
7→14rafales 14 km/h
0.3ressac faible
0.25m/s
5 mhoule récente
18.4°C5 mm + cagoule
▲10:00marée montante
Atmosphère21 kmcouvert
fortelune au nadir
conditions calmes : houle, vent et visibilité dans la norme
Android : la version publique est en validation sur Google Play — laisse ton e-mail et on t'envoie l'accès à la bêta aujourd'hui.
vise avec ta caméra
−10 m
La colonne d'eau
Visibilité et ce qui la commande — éclaircie post-tempête, panache du fleuve, température et la thermocline.
Ce que c'est
Un instrument marin, on-y-va / on-n'y-va-pas pour la chasse en solo.
spearo.app réunit vent, vague, période de houle, visibilité, marées, température de l'eau et risque en un seul verdict — aller au spot ou non. Il calcule 7 jours à l'avance à partir de modèles marins ouverts (Open-Meteo, IPMA), sans inscription ni compte. Conçu pour la chasse sous-marine en solo depuis les rochers, où la moindre erreur coûte cher.
Now live: 1152 spots across 189 stretches of coast — mainland Portugal, Madeira and the Azores.
Relief et type de fond, marées et les profondeurs de chaque spot.
Sur le rocher
La prévision, c'est le plan. La décision se prend sur le rocher.
Les modèles fixent le créneau. Si vous entrez à l'eau, ça se lit seulement sur place : comptez les séries, observez le ressac à l'entrée. Dans le doute, vous n'entrez pas.
Points d'entrée
Où entrer depuis les rochers.
Entrées repérées, colorées selon le jour. La couleur, c'est l'état de la mer au spot, pas une garantie : le clapot et une entrée glissante, vous les jugez sur place.
Early morning before the afternoon wind; summer is often flatter and diveable, winter brings big swell.
marée
Low-to-mid tide opens the reef and the entry off the rock platform.
abri
Sheltered from north wind (Cabo Espichel and the cliff block N/NW). Fully open to the west swell.
danger
Entry/exit over flat rocks in the shorebreak is the main danger; on swell it slams onto the rocks and there are rips along the reef.
accès
N377 toward Meco, then right onto the dirt road to the parking; walk the cliff path down to the small sand patch and rock platform.
First spearfishing-legal spot north of the park: reef bottom, a known spearo location (Roteiro da Arrábida). The Luiz Saldanha park begins to the south — spearfishing is BANNED inside it.
Early morning in calm; by afternoon nortada and waves churn and endanger the water.
marée
Low tide exposes the rocky reef ends, better for hunting.
abri
Almost no shelter — a long open beach facing the west swell and the afternoon nortada head-on.
danger
The Meco rip currents are NOTORIOUS — the dominant danger, with recurring drownings; there is almost always wave and shorebreak. Solo only on an obviously calm day.
accès
From Aldeia do Meco via N377 to the Camping Meco lots; short walk over the dunes to the sand.
Mostly open sand (little for spearing); only worthwhile at the reef ends on a flat day. Otherwise a scout/fallback. Outside the park, legal.
Praia da Ribeira do CavaloArrábida / Marine Park (no-take)
fermé
in the headland's lee today — swell from the quarter/behind
créneau
Early morning — before the wild beach fills with tourists.
marée
Any tide; low water exposes the rocky islets.
abri
South-facing cove, very sheltered from N/NW — hence the glassy, fish-rich water. Ideal for freediving/snorkel.
danger
The main 'hazard' here is legal: the whole water is the Luiz Saldanha Marine Park, spearfishing BANNED park-wide (fines, gear seizure). Physically, the trail's final descent is near-vertical over slippery rock dust, below an unstable cliff that sheds loose blocks onto the beach.
accès
~1 km trail from the dirt road past Sesimbra's Porto de Abrigo, descending between rocks; or by boat/kayak.
The prettiest, most fish-rich water by Sesimbra — but it is a NO-TAKE reserve. Listed as a WARNING: come here to dive without a gun. For spearfishing, go west of Cabo Espichel. ⚠️ The descent to the cove is dangerous: the final ~50 m are near-vertical over slippery fine dust on rock, and the fractured cliff drops loose blocks onto the beach — a real risk for a solo diver hauling gear.
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.
Android : la version publique est en validation sur Google Play — laisse ton e-mail et on t'envoie l'accès à la bêta aujourd'hui.
vise avec ta caméra
≈
Remontée
Caméras, carte et références — à portée de main en remontant.
Caméras en direct, carte et références
Caméras · en direct
Regardez l'eau en ce moment.
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».
Sesimbra — Praia do Meco (Windy)Live Windy webcam — Praia do Meco (Sesimbra). Official keyless player, plays inline. Read the water and swell before you go.caméra : windy ↗
✓Hand-gathering shellfish with NO gear — no licence; but if a speargun is on the dive, a spearfishing licence is required.
✓Night prohibited: spearfishing only in daylight (sunset→sunrise not allowed). Artificial light as a means of finding/attracting fish is banned — a torch for safety only.
✓Signalling buoy MANDATORY for spearfishing: buoy/float with an «Alfa» flag (red/orange/yellow, ≥8 L), no more than 30 m from the diver.
✓Spearfishing daily limit: fish + cephalopods — 15 kg (excluding the largest specimen). General rod-and-line recreational fishing — 10 kg.
Rules change. Before heading out, check with DGRM / ICNF / Capitania and the defeso table.
Protocole de sécurité
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. At Cabo Raso/Arriba a 0.5 m rise in swell makes a boulder exit impossible — getting pinned/unable to climb out is the main killer here.
Headland rip: at Cabo Raso there is 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.
Nortada (Jun–Sep): wind builds from midday — be out of the water by ~11:00; 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 Sesimbra
Where can I spearfish in Sesimbra?
Sesimbra has rock entry points such as Praia da Foz, Praia das Bicas and Praia do Moinho de Baixo (Meco). South-facing town tucked under the Arrábida hills — sheltered from NW swell, often calm and clear. Below you'll find each spot (access, shelter and hazards) and today's forecast.
When is the best season in Sesimbra?
A long season (April to November): the Arrábida is sheltered from the NW and the water is among the clearest on the mainland. Always check the protected-area rules.
How cold is the water in Sesimbra?
~15–21 °C — a touch warmer and steadier than the west coast thanks to the shelter. A 5 mm suit for most of the season.
Is Sesimbra good for a beginner?
More accessible: sheltered and clear, good for building experience on calm days (within the protected-area rules).
Do I need a licence in Sesimbra?
Yes — in Sesimbra, as everywhere on the mainland, you need a recreational fishing licence (DGRM); breath-hold only (no scuba), with a marker buoy and no night diving. See the guide for the details.
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