Orange County with NOAA buoys
Read KSL buoy pairs without mistaking offshore evidence for a beach guarantee.
Read guideSwellOracle Academy
Learn the language of the ocean.
The ocean is already talking. SwellOracle helps you understand what it means before you paddle out.
Original editorial content
Editorial guides for real decisions
Applied readings that connect ocean data, source limits and local context.
Central Chile surf data
Translate regional context across Pichilemu, Punta de Lobos and Reñaca with local judgement.
Read guideCan I trust this reading?
Evaluate source, timing, coherence and local confirmation before making a decision.
Read guideBeginner
How to Read the Swell
Learn what swell height, period, and direction mean — and how they shape your next session.
Start lessonWhat Is Swell Period?
Why 10 seconds, 14 seconds, and 17 seconds can mean completely different surf.
Start lessonHow to Read Swell Direction
Learn how swell angle, coastline exposure and island shadow decide which shore receives the energy.
Start lessonHow to Check Buoy Data
Check timestamp, source type and available variables before trusting a reading.
Start lessonHow Wind Changes Surf Conditions
Learn why wind direction, strength and timing can change a promising swell into a poor session.
Start lessonBefore You Go: Surf Data Checklist
Use a simple final check of source, swell, wind, tide and safety before you leave for the beach.
Start lessonSwell Height, Period and Direction
Use a practical reference to read the three core swell values together.
Start lessonReal Buoys vs Marine Models
Understand what is measured in the ocean and what is estimated by a model.
Start lessonIntermediate
How to Read a Surf Buoy
Read timestamp, wave height, period, direction and wind as one offshore snapshot.
Start lessonWhy Forecasts Are Often Wrong
Models, wind shifts, bathymetry, and why no forecast is perfect.
Start lessonHow to Use a Marine Forecast for Surf
Combine wave forecasts, buoys, models and sea conditions before choosing a surf window.
Start lessonAdvanced
Reading Multiple Buoys
Learn how experienced surfers track swell as it moves across the ocean.
Start lessonBuild a Complete Swell View
Combine stations, wind direction, wind strength and rising or falling tide before making a surf decision.
Start lessonBuild a Personal Surf Alert Strategy
Create and refine thresholds using swell, wind, tide and the exposure of your actual surf spot.
Start lessonResources
Configure Useful Surf Alerts
Set thresholds that help you follow a swell without receiving repeated noise.
Read resourceGlobal examples
Learn with buoys from around the world
Open physical stations by region to practice reading source, location, height, period, direction and observation age. When a recent reading is unavailable, the page says so without inventing values.
North America
Latin America
Europe and the Mediterranean
Asia and the Pacific
Australia
Practical takeaway
Start with one lesson, then use the live app to compare what you learned with today's ocean.