Treharris Wind ForecastUnited KingdomWLMerthyr TydfilTreharris1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Treharris wind forecast issued today at 7:13 am. Next forecast at approx. 7:13 pm.Treharris Wind Statistics July WindSt-athan (30km)2024JuneJulyStrongest 4 July, 202420.1mph WAverage July7.7mphStrongest 15 June, 202422.4mph WAverage June7.5mphStrongest 21 January, 202438mph WSWAverage 20248mphClimate (2011–Present)St-athan (30km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 11 March, 202142.5mph WSWAverage 2019–20248mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average July27.5%15%2.5%CalmStrongJuly Wind RoseJuly (5 Year Average)5 Year Average Annual5 Year Average July42.5%22.5%2.5%CalmStrongGet an account to remove ads