Portsea Island Rainfall ForecastUnited KingdomSEHampshirePortsea IslandToday 9 Nov10%Tue 10 Nov90%Wed 11 Nov55%Thu 12 Nov10%Fri 13 NovNo RainSat 14 Nov5%Sun 15 Nov80%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Portsea Island rainfall forecast issued today at 6:07 pm. Next forecast at approx. 8:07 am. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads