Portland Bill Lighthouse Wind ForecastUnited KingdomSWDorsetPortland Bill Lighthouse1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met Office Swell Height and Direction Forecast NOAA WaveWatch IIIWind Real-Time Portland Bill Lighthouse wind forecast issued today at 7:10 pm. Next forecast at approx. 7:10 am.Portland Bill Lighthouse Wind Statistics August WindIsle Of Portland (0km)2025JulyAugustStrongest 4 August, 202529.1mph WSWAverage August11.5mphStrongest 5 July, 202526.8mph WSWAverage July10.3mphStrongest 1 January, 202544.7mph SWAverage 202512.2mphClimate (2011–Present)Isle Of Portland (0km)Take a look at our website widgetsAvailable free! Find Out MoreStrongest 18 February, 202262.6mph WSWAverage 2020–202513.6mphWind RoseAnnual (5 Year Average)5 Year Average Annual5 Year Average August20%11.25%2.5%CalmGaleAugust Wind RoseAugust (5 Year Average)5 Year Average Annual5 Year Average August22.5%12.5%2.5%CalmGaleGet WillyWeather+ to remove ads