Southsea Castle Wind ForecastUnited KingdomSEHampshireSouthsea Castle1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Southsea Castle wind forecast issued today at 12:02 pm. Next forecast at approx. 12:02 am.Southsea Castle Wind Statistics September WindThorney Island (7.5 miles)2020AugustSeptemberStrongest 3 September, 202017.9mph WSWAverage September6.8mphStrongest 25 August, 202035.8mph SAverage August8.9mphStrongest 7 March, 202051.4mph SWAverage 202010.5mphClimate (2011–Present)Thorney Island (7.5 miles)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 March, 202051.4mph SWAverage 2011–Present8.9mphWind 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 an account to remove ads