Harlyn Bay Rainfall ForecastUnited KingdomSWCornwallHarlyn BayToday 3 Apr25%Sat 4 Apr65%Sun 5 Apr40%Mon 6 Apr15%Tue 7 Apr50%Wed 8 Apr60%Harlyn Bay rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Predannack (Cornwall) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads