Menai Strait - Trefarthen UV IndexUnited KingdomWLIsle of AngleseyMenai Strait - Trefarthen1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMenai Strait - Trefarthen UV forecast issued today at 6:51 pm. Next forecast at approx. 6:51 pm.Get WillyWeather+ to remove ads