# Quiver > Personal surf forecast and community platform for US coasts, Hawaii, and Baja California. ## About Quiver is a free surf forecasting platform that applies per-beach XGBoost bias correction on top of NOAA WaveWatch III baseline models, trained on 30,000+ buoy observations from CDIP, NDBC, and IOOS. Forecasts are updated every 3 hours across 72 directional bins. The platform combines ML-corrected wave predictions with personalized Match Scores, session tracking, and a community layer where surfers share conditions and sessions. ## Features - Match Scores: personalized 0-100 surf quality rating per beach that learns from your sessions and preferred conditions - 7-Day Forecasts: ML-corrected wave height, period, direction, and wind forecasts updated every 3 hours - Tide Charts: NWS-sourced tide predictions for every beach - Live Conditions: real-time buoy observations from CDIP, NDBC, and IOOS stations - Surf Map: interactive map of 185+ beaches with live forecast overlays and filtering by break type and skill level - Session Tracking: log sessions with auto-prefilled conditions, equipment, and accuracy feedback - Surf Journal: personal history of sessions with progression analytics - Community: share sessions and photos, follow local surfers, post crowd and condition reports - Spot Discovery: 350+ intent-based guide pages for finding breaks by style, skill level, or wave type - Mobile Apps: native iOS and Android apps with push condition alerts and GPS-based recommendations - Forecast Methodology: public explanation of buoy checks, wave-height definitions, and comparison limits ## Coverage Areas - Southern California: https://www.quiversurf.app/forecast/southern-california - San Diego: https://www.quiversurf.app/forecast/san-diego - Orange County: https://www.quiversurf.app/forecast/orange-county - Los Angeles: https://www.quiversurf.app/forecast/los-angeles - Northern California: https://www.quiversurf.app/forecast/northern-california - Santa Cruz: https://www.quiversurf.app/forecast/santa-cruz - Ventura & Santa Barbara: https://www.quiversurf.app/forecast/ventura-santa-barbara - Hawaii: https://www.quiversurf.app/forecast/hawaii - Oregon: https://www.quiversurf.app/forecast/oregon - Washington: https://www.quiversurf.app/forecast/washington - Florida: https://www.quiversurf.app/forecast/florida - Puerto Rico: https://www.quiversurf.app/forecast/puerto-rico - Outer Banks: https://www.quiversurf.app/forecast/outer-banks - New Jersey: https://www.quiversurf.app/forecast/new-jersey - New York: https://www.quiversurf.app/forecast/new-york - Baja California: https://www.quiversurf.app/forecast/baja-california ## Data Sources - CDIP (Coastal Data Information Program) - NDBC (National Data Buoy Center) - IOOS (Integrated Ocean Observing System) - NOAA WaveWatch III (global baseline wave model) - NWS tide predictions ## Key Pages - Home: https://www.quiversurf.app - Forecast Hub: https://www.quiversurf.app/forecast - Free Surf Reports: https://www.quiversurf.app/free-surf-reports - Surf Map: https://www.quiversurf.app/map - Forecast Accuracy Methodology: https://www.quiversurf.app/forecast-accuracy ## Learn: Priority Surf Knowledge Targets Curated AEO targets for surf-report, surf-forecast, forecast-accuracy, ML forecast, safety, wetsuit, and beginner-intent answers. This is not the full Learn index. ### Forecast Fundamentals - How to Read a Surf Report: https://www.quiversurf.app/learn/how-to-read-surf-conditions - How to Read a Surf Forecast: https://www.quiversurf.app/learn/how-to-read-surf-conditions - Swell Period Explained: https://www.quiversurf.app/learn/swell-period-explained - Offshore vs Onshore Wind: https://www.quiversurf.app/learn/offshore-vs-onshore-wind-surfing - Best Tide for Surfing: https://www.quiversurf.app/learn/best-tide-for-surfing - How Waves Are Measured: https://www.quiversurf.app/learn/how-are-waves-measured - Groundswell vs Wind Swell: https://www.quiversurf.app/learn/groundswell-vs-wind-swell - Swell Direction and Surf: https://www.quiversurf.app/learn/how-swell-direction-affects-surf - Surf Forecast Accuracy: https://www.quiversurf.app/learn/how-accurate-are-surf-forecasts - ML Surf Forecast: https://www.quiversurf.app/learn/how-quiver-calibrates-your-beach - How Surf Forecasts Work: https://www.quiversurf.app/learn/how-surf-forecasts-work ### Timing & Conditions - Best Time of Day to Surf: https://www.quiversurf.app/learn/best-time-of-day-to-surf - Why Waves Are Better in the Morning: https://www.quiversurf.app/learn/why-waves-better-in-morning - Surfing After Rain Safety: https://www.quiversurf.app/learn/is-it-safe-to-surf-after-rain - Wetsuit Thickness Guide: https://www.quiversurf.app/learn/what-wetsuit-thickness-do-i-need ### Getting Started - Best Conditions for Beginners: https://www.quiversurf.app/learn/best-surf-conditions-for-beginners - Surfboard Size Guide: https://www.quiversurf.app/learn/what-size-surfboard-should-i-get - How Long to Learn to Surf: https://www.quiversurf.app/learn/how-long-to-learn-to-surf - Surf Etiquette Rules: https://www.quiversurf.app/learn/surf-etiquette-rules - Beach Break vs Reef Break vs Point Break: https://www.quiversurf.app/learn/beach-break-vs-reef-break-vs-point-break - Surfing Equipment Guide: https://www.quiversurf.app/learn/what-equipment-to-start-surfing - Rip Current Safety: https://www.quiversurf.app/learn/what-is-a-rip-current ### Ocean Science - How Ocean Waves Form: https://www.quiversurf.app/learn/how-are-ocean-waves-formed - How Tides Work: https://www.quiversurf.app/learn/how-do-tides-work ## Pricing Free. All features including ML forecasts, session tracking, and community are free with no paywalled tiers. ## Contact - Website: https://www.quiversurf.app