Greencastle Wind ForecastUnited KingdomNIOmaghGreencastle1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Greencastle wind forecast issued today at 1:09 am. Next forecast at approx. 1:09 pm.Greencastle Wind Statistics August WindLough Fea Samos (17km)2025JulyAugustStrongest 4 August, 202531.3mph WNWAverage August6.1mphStrongest 7 July, 202524.6mph WNWAverage July6.1mphStrongest 24 January, 202540.3mph SWAverage 20255.9mphClimate (2011–Present)Lough Fea Samos (17km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 21 February, 202247mph WNWAverage 2020–20256.4mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August20%11.25%2.5%CalmStrongAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August17.5%10%2.5%CalmStrongGet WillyWeather+ to remove ads