Sarn Gynfelyn Rainfall ForecastUnited KingdomWLCeredigionSarn GynfelynToday 10 Sep85%Fri 11 Sep10%Sat 12 Sep80%Sun 13 Sep50%Mon 14 Sep50%Tue 15 Sep45%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Sarn Gynfelyn rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads