Sully Island Rainfall ForecastUnited KingdomWLVale of GlamorganSully IslandToday 3 Sep65%Thu 4 Sep70%Fri 5 Sep5%Sat 6 Sep20%Sun 7 Sep55%Mon 8 Sep35%Sully Island rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cobbacombe Cross (Devon) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads