Porth Diana Rainfall ForecastUnited KingdomWLIsle of AngleseyPorth DianaToday 29 Sep15%Tue 30 Sep45%Wed 1 Oct15%Thu 2 Oct85%Fri 3 Oct80%Sat 4 Oct40%Sun 5 Oct50%Porth Diana rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dublin RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads