Cardiff Rainfall ForecastUnited KingdomWLVale of GlamorganCardiffToday 5 Sep75%Sun 6 Sep45%Mon 7 Sep70%Tue 8 Sep35%Wed 9 Sep10%Thu 10 Sep15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Cardiff rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationCobbacombe Cross (Devon) RadarGet WillyWeather+ to remove ads