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 1:09 am. Next forecast at approx. 1:09 pm.Rhiwlas (Llanddeiniolen) Wind Statistics September WindCapel Curig Saws (15km)2025AugustSeptemberStrongest 15 September, 202542.5mph WSWAverage September11.5mphStrongest 4 August, 202544.7mph SWAverage August11.4mphStrongest 24 January, 202553.7mph SWAverage 202511.1mphClimate (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 September27.5%15%2.5%CalmGaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September40%21.25%2.5%CalmGaleGet WillyWeather+ to remove ads