Chichester Harbour Entrance Rainfall ForecastUnited KingdomSEHampshireChichester Harbour EntranceToday 16 Jan85%Sun 17 Jan5%Mon 18 Jan10%Tue 19 Jan50%Wed 20 Jan90%Chichester Harbour Entrance rainfall forecast issued today at 10:31 am. Next forecast at approx. 12:31 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads