Portslade-by-Sea Rainfall ForecastUnited KingdomSEEast SussexPortslade-by-SeaToday 21 Nov20%Fri 22 Nov60%Sat 23 Nov90%Sun 24 Nov85%Mon 25 Nov50%Tue 26 Nov40%Wed 27 Nov10%Portslade-by-Sea rainfall forecast issued today at 6:38 pm. Next forecast at approx. 8:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Thurnham (Kent) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads