Llanystumdwy Wind ForecastUnited KingdomWLGwyneddLlanystumdwy1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Llanystumdwy wind forecast issued today at 7:09 pm. Next forecast at approx. 7:09 am.Llanystumdwy Wind Statistics July WindCapel Curig Saws (29km)2025JuneJulyStrongest 4 July, 202535.8mph SWAverage July15.2mphStrongest 3 June, 202547mph SWAverage June14.8mphStrongest 24 January, 202553.7mph SWAverage 202511.4mphClimate (2011–Present)Capel Curig Saws (29km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 21 January, 202458.2mph SWAverage 2020–202512.1mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July27.5%15%2.5%CalmGaleJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July35%18.75%2.5%CalmGaleGet WillyWeather+ to remove ads