Black Rock Sands Porthmadog Wind ForecastUnited KingdomWLGwyneddBlack Rock Sands Porthmadog1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Black Rock Sands Porthmadog wind forecast issued today at 1:09 pm. Next forecast at approx. 1:09 am.Black Rock Sands Porthmadog Wind Statistics May WindCapel Curig Saws (26km)2026AprilMayStrongest 19 May, 202633.6mph SWAverage May9.7mphStrongest 4 April, 202651.4mph SWAverage April13mphStrongest 12 January, 202651.4mph SWAverage 202612.7mphClimate (2011–Present)Capel Curig Saws (26km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 21 January, 202458.2mph SWAverage 2021–202612.1mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average May27.5%15%2.5%CalmStrong GaleMay Wind RoseMay (5 Year Average)5 Year Average Annual5 Year Average May25%13.75%2.5%CalmStrong GaleGet WillyWeather+ to remove ads