- window
- tide
- shelter
- hazard
- access
Point west of the Magdalena plume, rock and sand 0–8 m, cleaner water. Coords approx — verify.
Google MapsToday — right on the edge — wave, wind and surge pounding.
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 mapPoint west of the Magdalena plume, rock and sand 0–8 m, cleaner water. Coords approx — verify.
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.
Rules change. Before heading out, get the AUNAP sport-fishing permit; with a speargun the lionfish is the only clearly legal target — for natives consult AUNAP. PNN Tayrona is no-take.
Puerto Colombia has rock entry points such as Puerto Velero. Puerto Colombia sits west of Barranquilla and in the shadow of the Magdalena river plume, which dumps ~200 million t of sediment a year and drags a turbid plume west — the town beaches are poor for diving. Below you'll find each spot (access, shelter and hazards) and today's forecast.
Clearest in the dry season (Dec–Apr) and the mid-year windless spell; the Magdalena plume can murk the water near Cartagena.
Warm, ~26–28 °C — rashguard or 2 mm. Clear off Santa Marta and Tayrona; murkier near the Magdalena river mouth.
Beginner-to-moderate around Santa Marta and Tayrona; respect the Tayrona and Corales national park zones.
In Puerto Colombia, sport spearfishing is a grey zone: Res AUNAP 0549/2022 authorises the speargun mainly against lionfish (invasive) — spearing native species is not confirmed in the text. You need a pesca deportiva permit (AUNAP); breath-hold only (one speargun, no scuba), no night. In the parks (Tayrona, Rosario, Malpelo, Gorgona) and across Seaflower (San Andrés) spearguns are banned for tourists. Check AUNAP rules and see the guide.
Leave your email — and the moment a window opens at Puerto Colombia, 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.
What's missing? Tell us what you'd like to see — new spots, species, data or features. We read everything.