Old St Mellons Wind ForecastUnited KingdomWLCardiffOld St Mellons1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Old St Mellons wind forecast issued today at 1:12 am. Next forecast at approx. 1:12 pm.Old St Mellons Wind Statistics May WindSt-athan (26km)2024AprilMayStrongest – Average May–Strongest 15 April, 202431.3mph WAverage April8.6mphStrongest 21 January, 202438mph WSWAverage 20248.7mphClimate (2011–Present)St-athan (26km)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 May27.5%15%2.5%CalmNear GaleMay Wind RoseMay (5 Year Average)5 Year Average Annual5 Year Average May25%13.75%2.5%CalmNear GaleGet an account to remove ads