Portland Harbour Wind ForecastUnited KingdomSWDorsetPortland Harbour1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portland Harbour wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Portland Harbour Wind Statistics April WindIsle Of Portland (6km)2026MarchAprilStrongest 4 April, 202635.8mph WSWAverage April15.2mphStrongest 24 March, 202638mph WAverage March14.9mphStrongest 9 January, 202644.7mph NWAverage 202616.1mphClimate (2011–Present)Isle Of Portland (6km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202262.6mph WSWAverage 2021–202613.7mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average April20%11.25%2.5%CalmGaleApril Wind RoseApril (5 Year Average)5 Year Average Annual5 Year Average April20%11.25%2.5%CalmGaleGet WillyWeather+ to remove ads