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

Waianae · United States
2.5
wave 1.3 m
visibility1m

Today — sit it out — wave, wind and surge pounding.

Sources: IPMA · NDBC · Copernicus — high confidence · data 13:26

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.

Download on theApp StoreGET IT ONGoogle Play

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
0 m

Surface

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

spearo.app
calmupdated 13:26
Waianae — solo, off the rocks
DON'T GO
don't go · wave 1.3 m (occasionally up to ~2.6 m)
wave 1.3 mwind 18, gusts 44 km/hsurge pounding the rocksvisibility ~1 m
today, best window 12:00–15:00
fish · Visibility 1 m · Water 27.5°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.

Wednesday · today2026-07-22
06:02–19:15 · first quarter
▼ 03:00▲ 12:00 · 0.4 m
Hours (06→20)
12
15
18
Day's trends
Tide0.48 m
Wave1.30 m
Wind9 km/h
Water27 °C
fish activity: moonset 00:26 · moderate · moon underfoot 07:10 · high · moonrise 14:00 · moderate · moon overhead 19:30 · high
Conditions window12:00–15:00
don't go fish
Hs 1.32 mperiod 9.5 swind 18→44surge 2.5viz 1 m
1.32 mup to ~2.64 · 173° at an angle
9.5 sswell moderate
18→44gusts 44 km/h
2.5pounding the rocks
0.17m/s
1 mrecent swell
27.5°C5 mm + hood
▼04:00tide turn near
Atmosphere3 kmprecip 1.8 mm
moderatemoonrise
  • wave 1.3 m (occasionally up to ~2.6 m)
  • strong wind 18 km/h, gusts 44 — caution
  • ebb — weaker inshore
confidence lowday
Open the seafloor map with entry points

Your best window — with you. Forecast in your pocket.

Download on theApp StoreGET IT ONGoogle Play

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
Kahe Point (Electric Beach)Waianae
dangerous
swell on the quarter today
window
tide
shelter
hazard
access

Warm outfall aggregates fish; reef fish and papio, popular — share with divers.

Google Maps
Makaha Caverns / ReefWaianae
dangerous
swell on the quarter today
window
tide
shelter
hazard
access

Offshore caverns and arches off Makaha; ulua, uku and kumu in clear leeward water.

Google Maps
Yokohama Bay (Keawa'ula)Waianae
dangerous
swell on the quarter today
window
tide
shelter
hazard
access

Secluded NW-tip clear water; ulua and papio, exposed to NW swell.

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.

Download on theApp StoreGET IT ONGoogle Play

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
  • uhu (parrotfish)
    Scaridae · 2–20 m · ⚠️ closed season/limit
    Uhu (parrotfish), Maui: ≤2/day, 10–14″ min; taking blue (terminal) males is PROHIBITED.
  • ulua (giant trevally)
    Caranx spp. · 2–30 m · legal
  • kumu (goatfish)
    Mullidae · 2–25 m · legal
  • roi (peacock grouper)
    Cephalopholis argus · 3–30 m · invasive — target
    Invasive — removal encouraged, no limit. Roi can carry ciguatera — a health caution.
  • ta'ape (bluestripe snapper)
    Lutjanus kasmira · 3–40 m · invasive — target
    Invasive — removal encouraged, no limit. Roi can carry ciguatera — a health caution.
Law
  • ✓No licence for residents; non-residents need the Nonresident Recreational Marine Fishing License ().
  • ✓MLCDs — no-take. West Hawai'i — scuba-spear banned. Uhu (Maui): ≤2/day, no blue males. Roi/ta'ape invasive — removal encouraged.
  • ⛔ 🚫 Marine Life Conservation Districts (Hanauma/Molokini/Pupukea etc.) — no-take: spear nothing. West Hawai'i — scuba-spear banned.
  • ⛔ 🚫 Sea turtles, monk seal and cetaceans — protected, don't disturb. Uhu: blue terminal males (Maui) may not be taken.

US spearfishing law is state-by-state. License, spearable species, powerhead rules and distances vary; federal sanctuaries (Gray's Reef, the Keys, Flower Garden Banks) ban spearfishing. Always confirm with the state agency and local ordinances.

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 Waianae

Where can I spearfish in Waianae?

Waianae has rock entry points such as Makaha Caverns / Reef, Kahe Point (Electric Beach) and Yokohama Bay (Keawa'ula). The clearest leeward Oahu water — Makaha caverns and NW-tip reefs for ulua, uku and kumu. Below you'll find each spot (access, shelter and hazards) and today's forecast.

When is the best season in Waianae?

Year-round; ulua/uhu, removing invasive roi/ta'ape is encouraged. No licence for residents.

How cold is the water in Waianae?

Warm, 24–27 °C; gin-clear year-round, reef channels on the slack.

Is Waianae good for a beginner?

Beginner-friendly: warm clear water; respect MLCD/no-take and the West Hawai'i scuba-spear ban.

Do I need a licence in Waianae?

Yes — in Waianae, 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 Hawaii & Alaska →
Coming soon

Get the go / no-go verdict for Waianae by email

Leave your email — and the moment a window opens at Waianae, we'll send the go / no-go verdict. Email is all we need.

Optional: city, channel, phone
What to send
Where to send it
26 countries · all spots

Pick your coast

Every covered town has its own live forecast, cameras and entry points. Choose where you're diving.

PortugalPortugal

Portugal map →

SpainSpain

Spain map →

ItalyItaly

Italy map →

GreeceGreece

Greece map →

FranceFrance

France map →

TurkeyTurkey

Turkey map →

North Aegean

Central Black Sea

CroatiaCroatia

Croatia map →

CyprusCyprus

Cyprus map →

MaltaMalta

Malta map →

BrazilBrazil

Brazil map →

ChileChile

Chile map →

ColombiaColombia

Colombia map →

VenezuelaVenezuela

Venezuela map →

Central Caribbean (Venezuela)

EcuadorEcuador

Ecuador map →

MexicoMexico

Mexico map →

BahamasBahamas

Bahamas map →

New Providence

San Salvador

Cat Island

Dominican RepublicDominican Republic

Dominican Rep. map →

Puerto RicoPuerto Rico

Puerto Rico map →

Islands (Puerto Rico)

PeruPeru

Peru map →

UruguayUruguay

Uruguay map →

ArgentinaArgentina

Argentina map →

Tierra del Fuego

AustraliaAustralia

Australia map →

SA Limestone Coast (Bonney)

WA South Coast (Great Southern)

WA Mid-West (Geraldton–Kalbarri)

WA North (Ningaloo–Kimberley)

New ZealandNew Zealand

New Zealand map →

East Cape / Gisborne

Hawke's Bay

Taranaki & Western NI

Wellington & Cook Strait

Nelson & Marlborough Sounds

Canterbury & Banks Peninsula

West Coast (South Island)

South AfricaSouth Africa

South Africa map →

United StatesUnited States

USA map →

PhilippinesPhilippines

Philippines map →
Feedback

Help us make it better

What's missing? Tell us what you'd like to see — new spots, species, data or features. We read everything.