Trefor Wind ForecastUnited KingdomWLGwyneddTrefor1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Trefor wind forecast issued today at 12:13 pm. Next forecast at approx. 12:13 am.Trefor Wind Statistics December WindValley (29km)2024NovemberDecemberStrongest 1 December, 202424.6mph SAverage December16.8mphStrongest 23 November, 202442.5mph SSEAverage November8.9mphStrongest 21 January, 202453.7mph SAverage 202411.6mphClimate (2011–Present)Valley (29km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 7 December, 202153.7mph SSWAverage 2019–202412.2mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average December15%8.75%2.5%CalmStormDecember Wind RoseDecember (5 Year Average)5 Year Average Annual5 Year Average December20%11.25%2.5%CalmStormGet WillyWeather+ to remove ads