Hermanus spearfishing forecast — wind, swell, visibility, tides & live cameras

Hermanus · South Africa
2.5
🌫 Murky all week after the storm — the water isn't settling
visibility1m

Tomorrow — sit it outwave, wind and surge pounding. 🌫 Murky all week after the storm — the water isn't settling

Sources: IPMA · NDBC · Copernicushigh confidence · data 22:59

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
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0 m

Surface

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

spearo.app
calmupdated 22:59
Hermanus — solo, off the rocks
DON'T GO
don't go · wave 1.8 m (occasionally up to ~3.7 m)
wave 1.8 mwind 19, gusts 41 km/hsurge pounding the rocksvisibility ~1 m
Thursday, best window 06:00–09:00
fish · Visibility 1 m · Water 15.4°C
confidence low · 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.

Thursday2026-07-23
07:4217:56 · first quarter
04:00 10:00 17:00 23:00 · 0.4 m
Hours (06→20)
06
09
12
15
18
Day's trends
Tide-0.13 m
Wave2.84 m
Wind7 km/h
Water15 °C
fish activity: moonset 02:39 · moderate · moon underfoot 07:40 · high · moonrise 12:45 · moderate · moon overhead 20:10 · high
Conditions window06:00–09:00
don't go fish
Hs 1.84 mperiod 8 swind 19→41surge 23.1viz 1 m
1.84 mup to ~3.68 · 230° at an angle
8 sswell moderate
19→41gusts 41 km/h
23.1pounding the rocks
0.14m/s
1 mrecent swell
15.4°Cthicker suit + hood
▲10:00tide rising
Atmosphere40 kmlandmarks visible
highmoon underfoot
  • wave 1.8 m (occasionally up to ~3.7 m)
  • steep wind-wave — choppy surface, careful on entry
  • flood — water rising
confidence lowtwilight
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.

Android beta — QR code
point your camera
−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
OnrusHermanus
dangerous
exposed head-on to the swell today
window
tide
shelter
hazard
access

Rocky reef and kelp off Onrus, west of Hermanus and clear of the Walker Bay whale sanctuary; roman, galjoen and yellowtail on clean SE water.

Google Maps
SandbaaiHermanus
dangerous
exposed head-on to the swell today
window
tide
shelter
hazard
access

Reef off Sandbaai west of Hermanus; hottentot and galjoen, sheltered from SE and outside the no-take whale sanctuary.

Google Maps
Voelklip (Walker Bay sanctuary)Hermanus
closed
exposed head-on to the swell today
window
tide
shelter
hazard
access

Voelklip beach sits inside the Walker Bay Whale Sanctuary Zone — a permanent no-take area where all fishing incl. spearfishing is banned (DFFE MPA Regs). Atop the year-round no-take rule, Walker Bay also carries a seasonal whale-season component (~Jun–Nov / Dec) restricting vessels and in-water activity while southern rights calve in the bay. Dive/look only; hunt west of Hermanus.

Google Maps

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.

One morning glance — and you know.

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

Surfacing

Cameras, map and reference — to hand as you come up.

Live cameras, map & reference
Open the seafloor map →
Reference

What's in season,
what the law says.

In season now
  • yellowtail
    Seriola lalandi · 3–40 m · legal
  • garrick / leervis
    Lichia amia · 1–20 m · legal
  • geelbek (Cape salmon)
    Atractoscion aequidens · 5–40 m · legal
  • galjoen (national fish)
    Dichistius capensis · 0–12 m · ⚠️ closed season/limit
    National fish but NOT no-take: legally spearable (35 cm, bag 2), closed 15 Oct–end Feb.
  • kob / kabeljou
    Argyrosomus japonicus · 2–30 m · legal
  • red roman
    Chrysoblephus laticeps · 5–40 m · legal
  • king mackerel (couta/cuda)
    Scomberomorus commerson · 1–25 m · legal
  • elf / shad
    Pomatomus saltatrix · 1–20 m · ⚠️ closed season/limit
    ⚠️ Closed 1 Sep–30 Nov (spawning). Don't take it then.
  • white musselcracker
    Sparodon durbanensis · 3–30 m · legal
  • hottentot
    Pachymetopon blochii · 2–25 m · legal
Law
  • 🚫 Table 3 (zero possession): brindle bass (Epinephelus lanceolatus), potato bass (E. tukula), seventy-four (moratorium since 1998), great white / whale / basking sharks, sawfishes, coelacanth, Natal wrasse.
  • 🚫 All hard corals, sea fans and sea pens (Scleractinia/Gorgonacea/Pennatulacea) — protected. Seahorses/pipefish (Syngnathidae) — no-take.
  • 🚫 Spearfishing in is FULLY BANNED (reg 16 — no exceptions). Inside an obey the managing authority's conditions; in several you can't even CARRY a speargun (Sardinia Bay, Bird Island, Robben Island etc.). Abalone (perlemoen) — recreationally closed until further notice.
Safety protocol
  • 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 Hermanus

Where can I spearfish in Hermanus?

Hermanus has rock entry points such as Onrus, Sandbaai and Voelklip (Walker Bay sanctuary). Hermanus on Walker Bay — yellowtail, red roman and hottentot over granite reef and kelp, with the cliff-path shore dives at Gearing's Point and the New Harbour. Below you'll find each spot (access, shelter and hazards) and today's forecast.

When is the best season in Hermanus?

Best clean days come after the SE wind (upwelling); cold, sharks present.

How cold is the water in Hermanus?

10–18 °C — 5–7 mm suit; cold Benguela, the SE upwelling drops it further.

Is Hermanus good for a beginner?

Hard: cold Benguela, swell, white-shark presence; dive after the SE clears it.

Do I need a licence in Hermanus?

Yes — in Hermanus, 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.

Full guide: spearfishing in South Africa
Coming soon

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