Garth (Porthmadog) Rainfall ForecastUnited KingdomWLGwyneddGarth (Porthmadog)Today 2 Nov5%Tue 3 NovNo RainWed 4 NovNo RainThu 5 Nov5%Fri 6 Nov5%Sat 7 Nov5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Garth (Porthmadog) rainfall forecast issued today at 12:11 am. Next forecast at approx. 2:11 pm. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads