Trefechan Wind ForecastUnited KingdomWLMerthyr TydfilTrefechan1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Trefechan wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Trefechan Wind Statistics June WindSennybridge (35km)2026MayJuneStrongest 3 June, 202622.4mph WSWAverage June10.1mphStrongest 19 May, 202622.4mph SWAverage May4.3mphStrongest 4 April, 202633.6mph SSWAverage 20266.6mphClimate (2011–Present)Sennybridge (35km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 13 March, 202335.8mph SWAverage 2021–20265.4mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average June15%8.75%2.5%CalmNear GaleJune Wind RoseJune (5 Year Average)5 Year Average Annual5 Year Average June25%13.75%2.5%CalmNear GaleGet WillyWeather+ to remove ads