Dorchester Wind ForecastUnited KingdomSWDorsetDorchester1-Day3-Day5-Day Graph Plots Open in Graphs Wind Forecast Met OfficeWind Real-Time Dorchester wind forecast issued yesterday at 7:09 pm. Next forecast at approx. 7:09 am.Dorchester Wind Statistics October WindIsle Of Portland (21km)2025SeptemberOctoberStrongest 4 October, 202542.5mph WAverage October12.8mphStrongest 15 September, 202540.3mph WAverage September16mphStrongest 1 January, 202544.7mph SWAverage 202512.7mphClimate (2011–Present)Isle Of Portland (21km)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 October20%11.25%2.5%CalmStormOctober Wind RoseOctober (5 Year Average)5 Year Average Annual5 Year Average October25%13.75%2.5%CalmStormGet WillyWeather+ to remove ads