Menai Strait - Castell-gwylan Rainfall ForecastUnited KingdomWLIsle of AngleseyMenai Strait - Castell-gwylanToday 31 Dec45%Thu 1 Jan60%Fri 2 Jan30%Sat 3 Jan10%Sun 4 Jan45%Mon 5 Jan25%Tue 6 Jan40%Menai Strait - Castell-gwylan rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads