Johnston Wind ForecastUnited KingdomWLPembrokeshireJohnston1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Johnston wind forecast issued today at 12:11 pm. Next forecast at approx. 12:11 am.Johnston Wind Statistics January WindMilford Haven C.b. (6km)2026DecemberJanuaryStrongest 6 January, 202620.1mph WSWAverage January10.9mphStrongest 9 December, 202538mph SAverage December12.4mphStrongest 6 January, 202620.1mph WSWAverage 202610.9mphClimate (2011–Present)Milford Haven C.b. (6km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202444.7mph WAverage 2021–20269.3mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average January17.5%10%2.5%CalmGaleJanuary Wind RoseJanuary (5 Year Average)5 Year Average Annual5 Year Average January15%8.75%2.5%CalmGaleGet WillyWeather+ to remove ads