Tan-lan Rainfall ForecastUnited KingdomWLGwyneddTan-lanToday 14 Apr95%Wed 15 Apr95%Thu 16 Apr60%Fri 17 Apr55%Sat 18 Apr35%Sun 19 Apr10%Mon 20 Apr5%Tan-lan 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 Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads