Harlyn Bay Rainfall ForecastUnited KingdomSWCornwallHarlyn BayToday 3 Dec5%Wed 4 Dec95%Thu 5 Dec75%Fri 6 Dec80%Sat 7 Dec65%Sun 8 Dec30%Mon 9 Dec10%Harlyn Bay rainfall forecast issued today at 12:38 pm. Next forecast at approx. 2:38 am.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