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 7:11 am. Next forecast at approx. 7:11 pm. Wind Speed Wind GustSouthsea Castle Wind Statistics September WindThorney Island (12km)2026AugustSeptemberStrongest 2 September, 202622.4mph SWAverage September9.7mphStrongest 29 August, 202629.1mph SSWAverage August7.6mphStrongest 24 March, 202635.8mph WAverage 20268.6mphClimate (2021–2026)Thorney Island (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202249.2mph WSWAverage 2021–20268.5mphWind 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