Portsmouth Harbour - Burrow Island Wind ForecastUnited KingdomSEHampshirePortsmouth Harbour - Burrow Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portsmouth Harbour - Burrow Island wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Portsmouth Harbour - Burrow Island Wind Statistics September WindThorney Island (14km)2025AugustSeptemberStrongest 3 September, 202531.3mph SSWAverage September12.5mphStrongest 30 August, 202526.8mph SSWAverage August7.6mphStrongest 1 January, 202535.8mph SWAverage 20258.1mphClimate (2011–Present)Thorney Island (14km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202249.2mph WSWAverage 2020–20258.5mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September15%8.75%2.5%CalmNear GaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmNear GaleGet WillyWeather+ to remove ads