Portslade-by-Sea Wind ForecastUnited KingdomSEEast SussexPortslade-by-Sea1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Portslade-by-Sea wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Portslade-by-Sea Wind Statistics September WindShoreham (5km)2025AugustSeptemberStrongest 3 September, 202531.3mph SWAverage September11.7mphStrongest 29 August, 202524.6mph SAverage August7.6mphStrongest 24 January, 202535.8mph SSWAverage 20257.9mphClimate (2011–Present)Shoreham (5km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202244.7mph SWAverage 2020–20258.4mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmStrongSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmStrongGet WillyWeather+ to remove ads