Helford River - Porthnavas Creek Entrance Rainfall ForecastUnited KingdomSWCornwallHelford River - Porthnavas Creek EntranceToday 18 Apr5%Fri 19 Apr10%Sat 20 Apr5%Sun 21 Apr5%Mon 22 Apr15%Tue 23 Apr10%Helford River - Porthnavas Creek Entrance rainfall forecast issued today at 7:44 am. Next forecast at approx. 9:44 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Predannack (Cornwall) RadarNational SatelliteNational SynopticGet an account to remove ads