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 yesterday at 6:52 pm. Next forecast at approx. 6:52 pm.Get WillyWeather+ to remove ads