Southampton Water - River Hamble Entrance Rainfall ForecastUnited KingdomSEHampshireSouthampton Water - River Hamble EntranceToday 31 MarNo RainTue 1 AprNo RainWed 2 AprNo RainThu 3 AprNo RainFri 4 AprNo RainSat 5 AprNo RainSouthampton Water - River Hamble Entrance rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 pm.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