Belfast Wind ForecastUnited KingdomNIBelfastBelfast1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Belfast wind forecast issued today at 7:11 pm. Next forecast at approx. 7:11 am.Belfast Wind Statistics September WindAldergrove (20km)2024AugustSeptemberStrongest 10 September, 202420.1mph WAverage September6.9mphStrongest 20 August, 202422.4mph WSWAverage August8.9mphStrongest 21 January, 202438mph SSWAverage 20247.6mphClimate (2011–Present)Aldergrove (20km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 21 January, 202438mph SSWAverage 2019–20247.5mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average September20%11.25%2.5%CalmStrongSeptember Wind RoseSeptember (5 Year Average)5 Year Average Annual5 Year Average September32.5%17.5%2.5%CalmStrongGet an account to remove ads