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 6:11 pm. Next forecast at approx. 6:11 am. Wind Speed Wind GustPortsmouth Harbour - Pewit Island Wind Statistics November WindThorney Island (15 km)2026OctoberNovemberStrongest 3 November, 202620.1 mph NEAverage November8.9 mphStrongest 24 October, 202638 mph SWAverage October8.9 mphStrongest 24 October, 202638 mph SWAverage 20268.6 mphClimate (2021–2026)Thorney Island (15 km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202249.2 mph WSWAverage 2021–20268.5 mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average November15%8.75%2.5%CalmNear GaleNovember Wind RoseNovember (5 Year Average)5 Year Average Annual5 Year Average November20%11.25%2.5%CalmNear GaleGet WillyWeather+ to remove ads