Kaštela spearfishing forecast — wind, swell, visibility, tides & live cameras
Today — right on the edge — wave, wind and visibility.
Sources: IPMA · NDBC · Copernicus — high confidence · data 17:57
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
Surface
Wind, wave and the swell windows — when to go and the best hours.
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.
- northerly wind picks up after midday
- visibility ~5 m
The water column
Visibility and what drives it — post-storm clearing, river plume, temperature and the thermocline.
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 spotsThe seabed
Relief and bottom type, tides, and the depths of each spot.
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.
Surfacing
Cameras, map and reference — to hand as you come up.
Live cameras, map & reference
Look at the water
right now.
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».
What's in season,
what the law says.
- common dentex
- gilthead seabream
- European seabass
- white seabream
- striped seabream
- ✓Speargun fishing is allowed ONLY with the SPORT sea-fishing licence (dozvola za športski ribolov na moru) — the ordinary does NOT cover it; tourists are eligible. 2026 fees: 1-day €10 / 3-day €25 / 7-day €45 / annual €79.63, plus mandatory HSSRM membership €10. Buy the day/multi-day online at ribarstvo.mps.hr; the annual is issued via HSSRM/clubs.
- ✓Breath-hold only, minimum age 16, daylight hours only, no more than 2 spearguns per diver, and a signal (marker) buoy is mandatory.
- ✓Kirnja (dusky grouper): spearfishing closed 1 Jul–31 Aug and max 1 specimen otherwise; overall recreational bag 5 kg/day. A vulnerable, slow-growing fish — release when in doubt.
- ⛔ Fan mussel (Pinna nobilis) — strictly protected, taking/disturbing prohibited (mass die-off from a pathogen).
- ⛔ Date mussel (Lithophaga lithophaga) — harvesting strictly banned (destroys the reef).
- ⛔ Seahorses (Hippocampus), loggerhead turtle (Caretta caretta) and monk seal (Monachus monachus) — protected, taking/disturbing prohibited.
Rules change and fees/seasons are updated yearly. Before heading out, check the Ministry of Agriculture fisheries portal (ribarstvo.mps.hr) and get the SPORT licence (the annual via HSSRM/a club); a speargun without it is illegal.
- 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 Kaštela
Where can I spearfish in Kaštela?
Kaštela — sheltered bay and marina, quiet, low-traffic coast. Check today's forecast above and pick a calm-sea day, always with a marker buoy.
When is the best season in Kaštela?
April to November. Central Dalmatia (Split, Brač, Hvar, Vis) is warm and clear, with sheltered channels on every side of the islands.
How cold is the water in Kaštela?
Very clear (20–30 m off Vis), microtidal. Warm summers (25–26 °C surface); the open island exposures cool and clear fastest after wind.
Is Kaštela good for a beginner?
Many easy island entries, but summer boat traffic is heavy around Split, Brač and Hvar — fly your dive buoy and stay off the ferry lanes.
Do I need a licence in Kaštela?
Yes — in Kaštela, 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.
Get the go / no-go verdict for Kaštela by email
Leave your email — and the moment a window opens at Kaštela, we'll send the go / no-go verdict. Email is all we need.
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