Southampton Water - River Hamble Entrance Rainfall ForecastUnited KingdomSEHampshireSouthampton Water - River Hamble EntranceToday 3 Aug45%Mon 4 Aug85%Tue 5 Aug5%Wed 6 Aug5%Thu 7 Aug5%Fri 8 Aug5%Southampton Water - River Hamble Entrance rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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