Flat Holm Island Wind ForecastUnited KingdomWLVale of GlamorganFlat Holm Island1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Flat Holm Island wind forecast issued today at 7:11 am. Next forecast at approx. 7:11 pm.Flat Holm Island Wind Statistics May WindSt-athan (22km)2025AprilMayStrongest 5 May, 202513.4mph NNEAverage May5mphStrongest 16 April, 202535.8mph WAverage April7.8mphStrongest 16 April, 202535.8mph WAverage 20257.3mphClimate (2011–Present)St-athan (22km)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 May27.5%15%2.5%CalmNear GaleMay Wind RoseMay (5 Year Average)5 Year Average Annual5 Year Average May25%13.75%2.5%CalmNear GaleGet WillyWeather+ to remove ads