Rhiwlas (Llandderfel) Wind ForecastUnited KingdomWLGwyneddRhiwlas (Llandderfel)1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Rhiwlas (Llandderfel) wind forecast issued today at 12:11 am. Next forecast at approx. 12:11 pm.Rhiwlas (Llandderfel) Wind Statistics March WindLake Vyrnwy Saws (20km)2026FebruaryMarchStrongest 12 March, 202638mph SSWAverage March9.3mphStrongest 20 February, 202633.6mph SWAverage February10.2mphStrongest 12 March, 202638mph SSWAverage 20268.9mphClimate (2011–Present)Lake Vyrnwy Saws (20km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 23 January, 202451.4mph SWAverage 2021–20267.9mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average March20%11.25%2.5%CalmStrong GaleMarch Wind RoseMarch (5 Year Average)5 Year Average Annual5 Year Average March20%11.25%2.5%CalmStrong GaleGet WillyWeather+ to remove ads