Rhiwlas (Llanddeiniolen) Wind ForecastUnited KingdomWLGwyneddRhiwlas (Llanddeiniolen)1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Rhiwlas (Llanddeiniolen) wind forecast issued today at 6:10 pm. Next forecast at approx. 6:10 am.Rhiwlas (Llanddeiniolen) Wind Statistics December WindCapel Curig Saws (15km)2025NovemberDecemberStrongest 9 December, 202555.9mph SWAverage December18.1mphStrongest 3 November, 202547mph SWAverage November14.8mphStrongest 9 December, 202555.9mph SWAverage 202512.1mphClimate (2011–Present)Capel Curig Saws (15km)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 December27.5%15%2.5%CalmStormDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December35%18.75%2.5%CalmStormGet WillyWeather+ to remove ads