Portsmouth Harbour - Pewit Island Wind ForecastUnited KingdomSEHampshirePortsmouth Harbour - Pewit Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portsmouth Harbour - Pewit Island wind forecast issued today at 6:10 am. Next forecast at approx. 6:10 pm.Portsmouth Harbour - Pewit Island Wind Statistics March WindThorney Island (15km)2026FebruaryMarchStrongest 13 March, 202633.6mph SWAverage March7.9mphStrongest 15 February, 202624.6mph SAverage February10.1mphStrongest 13 March, 202633.6mph SWAverage 20269.4mphClimate (2021–2026)Thorney Island (15km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202249.2mph WSWAverage 2021–20268.4mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average March15%8.75%2.5%CalmStrong GaleMarch Wind RoseMarch (5 Year Average)5 Year Average Annual5 Year Average March27.5%15%2.5%CalmStrong GaleGet WillyWeather+ to remove ads