To predict ship arrival time the effect of wind, waves and currents on its velocity is determined. Assessment of ship response parameters is based on actual shipping data and MetOcean conditions and does not require a dedicated complex physical model of the ship’s hydrodynamic behaviour. The technology combines near real-time ship data, MetOcean forecasts and the ship response parameters to predict sailing times. Ship position and speed are monitored using AIS technology. Historic AIS data and MetOcean data are analysed to assess ship speed related to ambient waves, wind and currents.