Christchurch Harbour Rainfall ForecastUnited KingdomSWDorsetChristchurch HarbourToday 16 Jul15%Thu 17 Jul5%Fri 18 Jul55%Sat 19 Jul50%Sun 20 Jul60%Mon 21 Jul40%Tue 22 Jul35%Christchurch Harbour rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.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