Llanuwchllyn Wind ForecastUnited KingdomWLGwyneddLlanuwchllyn1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Llanuwchllyn wind forecast issued today at 7:08 pm. Next forecast at approx. 7:08 am. Wind Speed Wind GustLlanuwchllyn Wind Statistics September WindLake Vyrnwy Saws (17km)2026AugustSeptemberStrongest 12 September, 202633.6mph WSWAverage September8.9mphStrongest 5 August, 202620.1mph SWAverage August6.3mphStrongest 4 April, 202649.2mph SWAverage 20268.4mphClimate (2021–2026)Lake Vyrnwy Saws (17km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 23 January, 202451.4mph SWAverage 2021–20268.2mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September20%11.25%2.5%CalmNear GaleSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September27.5%15%2.5%CalmNear GaleGet WillyWeather+ to remove ads