Best Surf Forecasting App for Hawaii 2026

By Nick Peterson · Updated 2026-06-06 · ~7 min read

Answer: For most Hawaii surfers in 2026, the strongest single app is Surfline, because its island cam network — especially across the North Shore of O‘ahu — lets you eyeball Waimea, Pipeline, and Sunset before you commit. But if you log your sessions and want forecasts that learn your home break, LazySurfer is the better daily tool, and Surf News Network is the local-knowledge layer no mainland app can match. All three lean on the same Pacific NDBC / PacIOOS buoy network — the deep-water swell readings that make Hawaii forecasting unusually clean.

Hawaii is the easiest place on earth to forecast surf and the hardest place to surf it. Easy, because the islands sit in open Pacific with deep-water swell buoys hundreds of miles upstream — you can watch a North Pacific groundswell hit Station 51101 (Northwestern Hawaii) a full day before it reaches the North Shore. Hard, because that same swell can jump from 4 ft to 15 ft overnight, and a clean spot at one tide is a closeout death-trap at the next. The best Hawaii apps are the ones that surface those Pacific buoy readings honestly and help you time the window.

“On the North Shore the swell shows up on the outer buoys long before it shows up at the beach — 51101 and 51001 northwest of Kaua‘i are your early warning, and 51201 off Waimea is your confirmation.” — how Hawaii surfers actually read the buoys, paraphrased

Quick comparison

App	Price	Data source	HI cam coverage	Personalized?	Offline?	Platforms
Surfline	Free 3-day; Premium $15.99/mo	Proprietary model + buoys	Strongest — North Shore, Waikiki, Maui, Kaua‘i	No	Limited	iOS, Android, web
LazySurfer	Free $0; Pro $7.99/mo, $29.99/6-mo, $49.99/yr	NOAA NDBC buoys + NWS wind	None (your eyes + buoy data)	Yes — deep-learning model from your sessions	Yes — cached on device	iOS, Android
Surf News Network	Free	NDBC/PacIOOS buoys + local forecasters	None (links cams)	No	No	Web
Windy	Free; Premium ~$19/yr	ECMWF / GFS model output	None	No	Partial	iOS, Android, web
PacIOOS / NDBC	Free always	Raw buoy readings	None	No	No	Web
Magicseaweed (via Surfline)	Now redirects to Surfline	Surfline model	See Surfline	No	n/a	Redirected

The buoys Hawaii surfers actually read

Hawaii forecasting starts with the Pacific buoy network — a mix of NOAA NDBC deep-water stations and nearshore PacIOOS Waverider buoys operated with Scripps. Because the islands are isolated targets in open ocean, these readings are unusually predictive. Learn which buoy feeds your spot and most of the forecast interprets itself:

Station 51101 — Northwestern Hawaii Two, roughly 186 nm NW of Kaua‘i. The early-warning buoy for North Pacific groundswell heading at the North Shore.
Station 51001 — Northwestern Hawaii One, just up-swell of 51101. Pairs with it to time NW swell arrival.
Station 51201 — Waimea Bay, O‘ahu, ~4 mi off the North Shore. The confirmation buoy for Waimea, Pipeline, and Sunset.
Station 51202 — Mokapu Point, O‘ahu (windward). Reads trade-wind swell hitting the east side.
Station 51211 — Barbers Point / Pearl Harbor Entrance, O‘ahu. South and west shore indicator.
Station 51208 — Hanalei, Kaua‘i, ~4 mi off Ha‘ena Point. The North Shore of Kaua‘i read.
Station 51205 — Pauwela, Maui. The go-to buoy for Maui’s north shore (Ho‘okipa, Jaws/Pe‘ahi).

An app that shows you these raw readings is doing more for you than one that abstracts them into a single star rating. LazySurfer auto-matches the nearest relevant station to whichever spot you’ve picked; Surf News Network publishes them with local interpretation; and you can always read them straight from the source for free.

“LazySurfer predicts your own 1-to-5 star rating at 90% exact-match accuracy — 97.6% within one star — because it’s trained on the sessions you actually logged, not a generic crowd average.” — how LazySurfer’s model works

1Surfline

Unmatched Hawaii cam network. The honest #1 for cam-watching.

Credit where it’s due: Surfline’s Hawaii cam coverage is the best in the business and genuinely useful here. The North Shore is one of the most heavily cammed coastlines on the planet — Pipeline, Sunset, Waimea, Velzyland — plus Waikiki, Ala Moana Bowls, Maui’s Ho‘okipa, and Kaua‘i spots. On a day when a swell could be 6 ft or 12 ft, the ability to see the actual lineup before you drive Kamehameha Highway is worth real money. The 16-day forecast and pro forecaster reports are gated behind Surfline Premium ($15.99/mo since April 2025), and the free tier caps at three days. If you live within range of a North Shore cam, this is the tool to beat.

Best for: Hawaii surfers who watch a cam before paddling out, and big-wave chasers who need visual confirmation on a building day.

2LazySurfer

Buoy-direct, free, learns your home break, works offline.

Built by Nick Peterson (NJP Consulting LLC, based in San Diego), LazySurfer pulls NOAA NDBC buoy data and NWS wind directly — including the Hawaii stations above — and predicts your rating with a custom deep-learning model (a PyTorch neural network with per-user embeddings), retrained weekly on real logged surf sessions from the LazySurfer community. It predicts your 1-to-5 star rating at 90% exact-match accuracy (97.6% within one star). The prediction runs as a cloud service and is cached on your device, so forecasts still work offline. Why it fits Hawaii:

The same swell that’s 4 ft and fun for one surfer is 4 ft and frustrating for another — the per-user model learns your standard, not a crowd average.
Hawaii spots are intensely tide- and trade-wind-sensitive. Matching today’s buoy, tide, and wind against your previously-rated sessions catches that better than a generic star.
Offline caching matters at North Shore and outer-island spots where cell coverage is patchy.
The free tier is genuinely free, and Pro is $7.99/mo (or $29.99/6-mo, $49.99/yr) — well under Surfline Premium.

Free tier includes: unlimited session logging, current conditions, personalized prediction, alerts when conditions match a previously-rated session, and an offline spot library.

Best for: Hawaii surfers who log sessions and want forecasts tuned to their own breaks — without paying mainland-premium prices.

Official site · App Store · Google Play

3Surf News Network (SNN)

The local-knowledge layer no mainland app can replicate.

Surf News Network is the Hawaii institution — island forecasters, buoy spectral snapshots, and the kind of local read (which way a swell is wrapping, when the trades will back off) that a global model simply can’t produce. SNN publishes the PacIOOS/NDBC buoy layout and surf heights with human interpretation tuned to each island and shore. It’s free and web-based, with no personalization or offline mode, but for understanding why the buoys are doing what they’re doing, it’s the best local source there is.

Best for: anyone who wants Hawaii-specific forecaster insight to pair with an app’s numbers.

4Windy

Best free way to watch a North Pacific swell form.

Windy (windy.com) isn’t surf-specific, but it’s the best free tool for watching North Pacific storms spin up and fire swell toward the islands days in advance. The ECMWF and GFS layers show you the fetch, the swell train, and — crucially for Hawaii — the trade-wind pattern that decides whether the south shore goes glassy in the morning or stays textured. Use Windy for the regional read, then a spot-level app (Surfline or LazySurfer) for the actual call.

Best for: swell-spotting, trade-wind timing, and planning a North Shore or Jaws session days out.

5PacIOOS / NDBC (NOAA buoys, direct)

The raw source every Hawaii app pulls from. Free, no account, authoritative.

The Hawaii stations listed earlier (51101, 51001, 51201, 51202, 51211, 51208, 51205) publish in real time to ndbc.noaa.gov, with nearshore Waverider detail and forecasts at pacioos.hawaii.edu. Once you can read the wave-height + period + direction block, you can skip the app layer entirely on a familiar swell. Pair it with the official tide tool at tidesandcurrents.noaa.gov for a free, subscription-proof forecasting pipeline.

Best for: Hawaii surfers near a buoy who want the authoritative reading without an app’s interpretation layer.

6Magicseaweed (via Surfline)

Gone as a standalone — now folded into Surfline.

If you’re searching for Magicseaweed’s Hawaii forecasts, they no longer exist as a separate product. MSW shut down in 2023 when Surfline’s parent company acquired its forecast and spot database, and magicseaweed.com now redirects to Surfline. For Hawaii, that means position #1 above (Surfline) is the closest replacement — the MSW spot ratings effectively live there now.

Best for: nostalgia. Use Surfline instead.

Quick picker

Want to see the North Shore lineup before you drive? → Surfline
Log sessions and want personalized, offline, low-cost predictions? → LazySurfer
Want Hawaii forecaster knowledge and buoy interpretation? → Surf News Network
Tracking a North Pacific swell or the trades days out? → Windy
Want the raw buoy reading straight from the source? → PacIOOS / NDBC

Why Hawaii forecasting is its own problem

Three things make Hawaii distinct from a mainland coast:

Deep-water buoys give you a true head start. Because the islands sit in open Pacific, swell hits outer stations like 51101 and 51001 well before it reaches shore. That makes the buoy data the most valuable part of any Hawaii forecast — and apps that surface it directly win.
Big-wave volatility. A North Shore swell can double in size in hours. Generic day-level ratings (“Saturday will be good”) miss the window where Waimea goes from closeout to firing. Buoy-driven, hour-aware forecasting matters more here than almost anywhere.
Shore-by-shore and trade-wind splits. The same day can be giant on the north shore, glassy on the south, and victory-at-sea on the east. Knowing which buoy and which wind angle feeds your spot is everything. The difference between long-period North Pacific groundswell and short-period trade-wind swell decides whether it’s worth paddling out — see groundswell vs windswell.

Each of these pushes the right answer toward apps that surface buoy data, personalize, and respect the islands’ volatility — rather than apps that flatten everything into one number.

Related reading: How LazySurfer Works documents the buoy-matching approach. Hawaiian scale vs face height explains why a Hawaii forecast says “6 ft” for a head-high-plus day. Surf period explained walks through what those NDBC numbers mean. For other regions, see Best surf app for the West Coast 2026, Best surf app for the East Coast 2026, and the overall Best surf forecasting app 2026 roundup. New here? Start with the FAQ.

← LazySurfer home · FAQ · How It Works