Helford River - Porthnavas Creek Entrance Rainfall ForecastUnited KingdomSWCornwallHelford River - Porthnavas Creek EntranceToday 18 May100%Tue 19 May85%Wed 20 May50%Thu 21 May10%Fri 22 May15%Sat 23 May15%Sun 24 May5%Helford River - Porthnavas Creek Entrance rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 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