Porthkerry Rainfall ForecastUnited KingdomWLVale of GlamorganPorthkerryToday 18 Dec100%Fri 19 Dec10%Sat 20 Dec80%Sun 21 Dec50%Mon 22 Dec15%Tue 23 Dec15%Porthkerry rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 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