Ynys Gwylan-fawr Wind ForecastUnited KingdomWLGwyneddYnys Gwylan-fawr1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Ynys Gwylan-fawr wind forecast issued today at 7:09 pm. Next forecast at approx. 7:09 am. Wind Speed Wind GustYnys Gwylan-fawr Wind Statistics September WindAberdaron (3km)2026AugustSeptemberStrongest 12 September, 202638mph SWAverage September16.9mphStrongest 4 August, 202622.4mph SWAverage August9.7mphStrongest 4 April, 202655.9mph SWAverage 202614.5mphClimate (2021–2026)Aberdaron (3km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202164.9mph SSWAverage 2021–202615.1mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September12.5%7.5%2.5%CalmStrong GaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September17.5%10%2.5%CalmStrong GaleGet WillyWeather+ to remove ads