Southsea Rainfall ForecastUnited KingdomSEHampshireSouthseaToday 7 Mar50%Sun 8 Mar20%Mon 9 Mar15%Tue 10 Mar90%Wed 11 Mar90%Thu 12 Mar85%Fri 13 Mar85%Southsea rainfall forecast issued today at 6:35 pm. Next forecast at approx. 8:35 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads