Graig Penllyn Wind ForecastUnited KingdomWLVale of GlamorganGraig Penllyn1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Graig Penllyn wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Graig Penllyn Wind Statistics October WindSt-athan (9km)2025SeptemberOctoberStrongest 1 October, 20254.5mph SWAverage October1.1mphStrongest 15 September, 202531.3mph WAverage September8.6mphStrongest 16 April, 202535.8mph WAverage 20257.8mphClimate (2011–Present)St-athan (9km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202447mph WAverage 2020–20257.7mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average October27.5%15%2.5%CalmNear GaleOctober Wind RoseOctober (5 Year Average)5 Year Average Annual5 Year Average October35%18.75%2.5%CalmNear GaleGet WillyWeather+ to remove ads