Menai Strait - Trefarthen Rainfall ForecastUnited KingdomWLIsle of AngleseyMenai Strait - TrefarthenToday 10 Nov10%Wed 11 Nov15%Thu 12 NovNo RainFri 13 Nov10%Sat 14 Nov10%Sun 15 Nov50%Mon 16 Nov40%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Menai Strait - Trefarthen rainfall forecast issued today at 12:08 pm. Next forecast at approx. 2:08 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads