Christchurch Harbour Rainfall ForecastUnited KingdomSWDorsetChristchurch HarbourToday 15 Sep20%Wed 16 Sep50%Thu 17 Sep70%Fri 18 Sep20%Sat 19 Sep10%Sun 20 Sep5%Mon 21 Sep15%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Christchurch Harbour rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads