Trallwn Rainfall ForecastUnited KingdomWLSwanseaTrallwnToday 17 Jan15%Sun 18 Jan80%Mon 19 Jan55%Tue 20 Jan55%Wed 21 Jan65%Thu 22 Jan35%Fri 23 Jan40%Trallwn rainfall forecast issued today at 12:36 pm. Next forecast at approx. 2:36 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