Portsmouth Harbour - Cams Bay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Cams BayToday 16 Nov10%Mon 17 Nov5%Tue 18 Nov10%Wed 19 Nov5%Thu 20 Nov5%Fri 21 Nov50%Portsmouth Harbour - Cams Bay rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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