Forecast: KNMI HARMONIE-AROME (2 km, updated hourly) and ECMWF via Open-Meteo, CC BY 4.0. Live wind: KNMI 10-minute data. Tide: Rijkswaterstaat. Waves: DWD and ECMWF wave models. Rider reports: Hi8ctane riders on the beach. A model forecast, not a beach sensor.