Glan-yr-afon (Llandderfel) UV IndexUnited KingdomWLGwyneddGlan-yr-afon (Llandderfel)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAGlan-yr-afon (Llandderfel) UV forecast issued yesterday at 7:54 pm. Next forecast at approx. 7:54 pm.Get an account to remove ads