Today — right on the edge — wave, wind and noticeable surge.
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
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.
Leave your email — and the moment a window opens at Moonta, 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.
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 mapA low dune point at the south end of a short beach of rock and sand flats. The state habitat map shows bare sand at the mark and low reef about 70 m away. The shore works only toward high tide. The Moonta Bay jetty is 230 m north, clear of the 100 m jetty rule.
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 as of now — 25.10.2026 15:06 (Australia/Adelaide)
Moonta has rock entry points such as Rossiters Point. Moonta faces Spencer Gulf across a low-energy shore of sand and rock flats that widen toward the Moonta Bay jetty. Below you'll find each spot (access, shelter and hazards) and today's forecast.
Summer–autumn — warm, clear gulfs; mind the dodge tides and sharks.
16–22 °C — 5 mm suit; warm gulfs but more sharks.
Moderate: warm, clear water, but dodge tides and sharks.
Moonta is in SA. No licence in South Australia — but the Adelaide-metro spearfishing closures apply (Port Noarlunga) and you may not spear within 200 m of certain river mouths. Spearfishing on scuba is banned everywhere, rock lobster may never be speared, and marine-park sanctuary/green zones are no-take. See the guide for the state-by-state detail.
Rules change and vary BY STATE. Before heading out, check with your state's fisheries (NSW DPI, Fisheries QLD, VFA, DPIRD WA, PIRSA, NRE Tas, NT Fisheries) and the marine-park zoning map.
