Rhos-y-llan Wind ForecastUnited KingdomWLGwyneddRhos-y-llan1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Rhos-y-llan wind forecast issued today at 12:09 am. Next forecast at approx. 12:09 pm.Rhos-y-llan Wind Statistics December WindAberdaron (15km)2025NovemberDecemberStrongest 9 December, 202558.2mph SSWAverage December21.8mphStrongest 1 November, 202547mph SSWAverage November19.5mphStrongest 24 January, 202564.9mph SWAverage 202514.8mphClimate (2011–Present)Aberdaron (15km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202164.9mph SSWAverage 2020–202514.9mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December12.5%7.5%2.5%CalmViolentDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December20%11.25%2.5%CalmViolentGet WillyWeather+ to remove ads