Swansea Bay Rainfall ForecastUnited KingdomWLSwanseaSwansea BayToday 3 Sep70%Thu 4 Sep65%Fri 5 Sep5%Sat 6 Sep60%Sun 7 Sep60%Mon 8 Sep60%Tue 9 Sep60%Swansea Bay rainfall forecast issued today at 1:39 pm. Next forecast at approx. 3:39 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads