Menai Strait - Trefarthen Wind ForecastUnited KingdomWLIsle of AngleseyMenai Strait - Trefarthen1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Menai Strait - Trefarthen wind forecast issued yesterday at 6:13 pm. Next forecast at approx. 6:13 am.Menai Strait - Trefarthen Wind Statistics November WindValley (20km)2024OctoberNovemberStrongest 21 November, 202429.1mph WAverage November6.5mphStrongest 20 October, 202447mph SSWAverage October11.4mphStrongest 21 January, 202453.7mph SAverage 202411.5mphClimate (2011–Present)Valley (20km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202153.7mph SSWAverage 2019–202412.2mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average November15%8.75%2.5%CalmStrong GaleNovember Wind RoseNovember (5 Year Average)5 Year Average Annual5 Year Average November17.5%10%2.5%CalmStrong GaleGet WillyWeather+ to remove ads