SW, S (Prevailing winds that funnel cleanly across the harbour)
15-25 knots; 4-5m wings in lighter air.
Sailable at all tides. High tide is preferred for easiest launch.
Tide times for Portland Harbour →Wind and weather forecasts for Portland Harbour are provided to help you plan your sessions. Conditions at this coastal location can change quickly, so always check the actual conditions when you arrive and trust your judgment. These forecasts are for recreational planning—always prioritize safety and verify conditions yourself before heading out. Tidal predictions for Portland Harbour are based on the nearest primary station at PORTLAND (1.89km away). Local conditions can vary from these predictions due to coastal topography and weather effects. Always verify tidal conditions on arrival—these predictions are for planning purposes only, not for navigational use or critical safety decisions.