Precision oceanography for pure lineups.
Read live buoy feeds, check wave heights before you paddle out, and find the board shaped for your local break.
Predict every wave before you paddle out.
Accurate ocean buoy metrics, local condition reports, wind vectors, and travel budgets in one clear tool.
Real-time wave telemetry
Track ocean swell energy, primary wave heights, and arrival intervals directly from coastal offshore buoys.
Daily surf condition logs
Read morning scout reports with breakdown ratings on wave shape, peak consistency, and crowd density.
Wind direction & velocity
Analyze cross-shore and offshore wind vectors before you paddle out to avoid blown-out sessions.
Trip & daily cost breakdowns
Plan surf travel with honest estimates covering local transport, board rentals, food, and coastal lodging.
Need advice choosing the right board for today's conditions?
Match your weight, experience, and local wave power in our board assistant.
Worldwide breaks and swell telemetry
Real-time wave heights, offshore wind readings, and trip budget estimates for top ocean spots around the world.
Banzai Pipeline
Uluwatu
Teahupo'o
Supertubes, J-Bay
La Gravière
Superbank
Searching for conditions tuned to your style?
Filter by swell direction, tidal window, and daily budget across 150+ monitored global breaks.
How the algorithm shapes your ideal ride
Your biometrics, local break profile, and paddle stamina combine to calculate exact dimensions, rocker contours, and liter volume.
Biometric baseline
Calculates baseline water displacement by evaluating surfer height, mass, and center-of-gravity distribution.
V_base = Mass (kg) × Buoyancy_kPaddle & fitness factor
Applies rider experience rating and continuous paddle stamina to adjust float requirements for clean wave entry.
k_fit = (Paddle_Score / 100) + 0.85Wave power & break profile
Ingests target break bathymetry and typical swell face heights to optimize nose rocker and rail taper.
Curve = Energy(kJ) / Bathymetry_IndexOutline & foil synthesis
Synthesizes all calculations into precision template specs, tailored rail volumes, and optimum fin setups.
Final = Quad-Concave · ThrusterAdaptive calculation engine active
Outputs exact liters, rails, and fin configurations across all surfboard categories.
Proven in the line-up, every session
Real swell logs, offshore wind verifications, and board volume matches from active surfers reading live ocean data.
“Swell's accurate forecasts and spot photos helped me plan my surf trips with confidence. The incoming wave heights were spot-on.”
Beginner • 42L Foamie
Logged 2h ago
“The surfboard fitting tool was a game-changer for my progression in heavy water. Matched my volume to the reef break cleanly.”
Intermediate • 33L Fish
Logged 5h ago
“No fluff, no AI-generated stock photos. The wind shift predictions at La Gravière saved our early dawn patrol window.”
Advanced • 29L Step-Up
Logged yesterday
“The travel cost breakdown and tide intervals made budgeting my winter road trip effortless. Everything mapped to real conditions.”
Intermediate • 36L Mid-Length
Logged 2 days ago
“Local scout updates pinpoint sandbar shifts faster than any global model. Saved me from getting trapped on dead low tide.”
Advanced • 28L Thruster
Logged 3 days ago
“As a beginner traveler, knowing the exact entry cost and crowd forecast kept me relaxed and scoring endless left-hand peelers.”
Beginner • 46L Longboard
Logged 4 days ago
Ready for your next session?
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SWELL App
VERSION 3.4 TELEMETRY
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