The ocean doesn't lie. Your forecast app should be the same.
Honest global surf forecasts. 4+ years of historical data. Zero ads on any tier, ever. From $4 a month.
7-day free trial · Cancel anytime · No credit card to start
30 seconds to know if it's worth getting up.
From search to session.
Search any spot on earth.
Type any beach, point break, or reef — anywhere. No account needed. No signup wall. Just type and see.
See honest conditions.
Wave height, swell period and direction, wind, tides, and UV — updated every hour. No ads between you and the data. No star ratings without explanation.
Plan your session — or your whole trip.
Full 10-day forecast with surf ratings. 4+ years of historical data for any coastal coordinate. See exactly when the swell peaks. Know before you go to the airport.
Every other forecast app is designed to frustrate you into paying more.
Surfline raised their prices. Again.
$120 a year. Check limits. A free tier designed to feel broken. Ads between you and the forecast. And when MSW's 3 million users needed a home, Surfline absorbed it and turned off the lights.
Groundswell: $40/year. No check limits. No ads. No games. Same ocean.
Magicseaweed is gone. Nothing replaced it.
Three million surfers in 200 countries lost their forecast tool overnight in May 2023. No warning. No archive. No migration path. Most still haven't found a home.
This is what MSW should have become. Global coverage, honest pricing, beautiful UI. $4 a month.
Every other app thinks in English.
Surfline is built for California. Surf-Forecast.com is English only. For the majority of the world's 35 million surfers, there's never been a quality native-language option.
Fully live in English, Portuguese, Spanish, and French. Your break, your language.
For every trip
4+ years of swell history. Any coast on earth.
Planning a trip to Nazaré in October? The Maldives in November? Pull up years of actual wave, wind, and swell records for any coastal coordinate before you book. Not averages. Not models. What actually happened — week by week, going back to January 2022.
For this morning
608 live spots. Updated every 3 hours.
See which breaks on earth are going off right now. Not a push notification blast about a regional swell — a real-time global conditions board, every three hours. Find the window. Get in the water.
The thing no other app will show you
We publish our accuracy record.
Every forecast gets it wrong sometimes. Groundswell is the only surf app that shows you exactly how often — broken down by station, going back 400 days. Not because we're perfect. Because you deserve to surf on information you can trust, and trust starts with honesty. Check the accuracy page before you commit to a session.
See our accuracy record →Multiple sources. One clean answer.
Tide data you can actually rely on.
Groundswell pulls tide data from NOAA, DFO, and the NEMO global ocean model, then surfaces the highest-quality reading for your location — with a live NOAA verification badge so you always know what you're looking at. Accurate tides for breaks that other apps get wrong.
This one's simple
Check it as many times as you need.
No check limits. No "you've used 4 of 5 checks this week." No premium tier designed to make the free one feel broken. The ocean changes — and you should be able to check it every time it does.
10-day surf forecast
See exactly when the swell peaks — days in advance.
Unlock the full 10-day forecast
Individual plan — from $3.33/mo
Everything a serious surfer needs.
Nothing designed to annoy you into upgrading.
Free
$0
Always free. No card, no time limit.
- 3-day forecast, any coast on earth
- Wave height, swell, wind, and tides
- Surf quality rating
- Nearby spots finder
- 1 saved location
- All 5 languages
Individual
Billed as $40/year · Pay for 10 months. Surf 12.
No credit card required to start
- Everything in Free
- Full 10-day forecast
- 4+ years of historical swell data
- Best surf now — 608 live spots
- Full tide curve + NOAA verification
- 400-day accuracy record
- Unlimited saved locations
- Weekly swell alert emails
Premium
Coming soon$12/mo
- 15-day extended forecast
- Multi-model comparison (GFS vs NEMO)
- Swell alert notifications
- Session planning tools
Less than a coffee a month. More than every other forecast app at any price.
No hidden fees. No surprise renewals. Cancel anytime.
Individual
Billed as $40/year
7-day free trial
Cancel anytime
No credit card required to start
Already have an account?
Your forecast app shouldn't make you angry. This one won't.
We're that confident because we've surfed on this data ourselves. If after 7 days you don't think Groundswell is the most honest forecast tool you've ever used, we'll refund every cent. The free tier stays free regardless. No hard feelings. No cancellation hoops.
No ads · No check limits · No card to start · Cancel anytime · Published accuracy stats · 5 languages · Honest by design
Open ocean data from NOAA, ECMWF, and Copernicus Marine. Updated hourly. Built honest, on purpose.