Portsmouth Harbour - Cams Bay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Cams BayToday 1 Jan50%Fri 2 Jan10%Sat 3 JanNo RainSun 4 Jan5%Mon 5 Jan5%Tue 6 Jan10%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