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 12:13 pm. Next forecast at approx. 12:13 am. Wind Speed Wind GustOld St Mellons Wind Statistics October WindSt-athan (26 km)2026SeptemberOctoberStrongest 24 October, 202635.8 mph WSWAverage October10.4 mphStrongest 19 September, 202624.6 mph WSWAverage September8.4 mphStrongest 24 October, 202635.8 mph WSWAverage 20268.8 mphClimate (2021–2026)St-athan (26 km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202447 mph WAverage 2021–20268 mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average October27.5%15%2.5%CalmNear GaleOctober Wind RoseOctober (5 Year Average)5 Year Average Annual5 Year Average October35%18.75%2.5%CalmNear GaleGet WillyWeather+ to remove ads