South Stack Wind ForecastUnited KingdomWLIsle of AngleseySouth Stack1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time South Stack wind forecast issued today at 6:36 am. Next forecast at approx. 6:36 pm.South Stack Wind Statistics December WindValley (12km)2023NovemberDecemberStrongest 2 December, 202322.4mph SAverage December8.2mphStrongest 13 November, 202342.5mph SWAverage November12.5mphStrongest 27 September, 202347mph SAverage 202311.9mphClimate (2011–Present)Valley (12km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202153.7mph SSWAverage 2018–202312.2mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December15%8.75%2.5%CalmStormDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December20%11.25%2.5%CalmStormGet an account to remove ads