SwellLab
Surf Forecast, Ratings & Tides
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
SwellLab is a surf forecast app built for surfers in Taiwan. Covering 40+ surf spots across the island, it turns wave height, period, swell direction, wind, and tides into easy-to-understand localized ratings — helping you quickly decide where to surf and when to paddle out.
Key features:
• Surf forecast & scoring — a 10-day outlook with an easy 1–5 rating for every spot, tuned to each break's swell window, tide preference, and bottom type
• Best Surf ranking — see which spots are firing right now, sorted across the whole island
• Tide & moon — tide charts and moon phase together, so you know exactly when the window opens
• Live cams — check real-time video before you drive out
• Typhoon tracking — official CWA typhoon and marine warnings, plus swell forecasts through typhoon swell events
• Pocket Spots — save your go-to breaks for one-tap access
• Surf Alerts — get notified when your saved spots hit the conditions you're after
• Multi-source forecast data from ECMWF, NOAA, DWD, Météo-France, and Taiwan's CWA
SwellLab Pro unlocks the full 10-day forecast at our most advanced spots, hourly data refresh, unlimited Pocket Spots and Surf Alerts, and the full Best Surf ranking beyond today. Early-bird pricing available for a limited time.
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms and Privacy Policy:
https://swell-lab.com/privacy
https://swell-lab.com/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Wind gusts now count toward spot scores
Scoring used to look at average wind speed only. Gusty hours — light on average
but punchy in the gusts — now score lower and say so, reflecting the chopped-up
face you actually paddle out into.
• Scoring fixes for west and southwest coast spots
Per-spot wave height curves tightened, and Mashagou's swell window is now
measured against the true coastline normal.
• Forecast sample points moved inshore at three spots
They were sitting too far offshore. Wave height and wind now match what's
happening at the beach.
• Simpler Stories tabs
Just Latest and Regions now — open it and you're on today's newest posts.
The developer, Chia-Yu Huang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Chia-Yu Huang
- Size
- 23.9 MB
- Category
- Weather
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Traditional Chinese
- Age Rating
13+
- 13+
- Contains
User-Generated Content
Social Media
- In-App Purchases
Yes
- SwellLab Pro Annual $29.99
- SwellLab Pro Monthly $2.99
- Copyright
- © 2026 SwellLab
