Aberystwyth suffered some of the worst effects with evacuations from properties along the sea front at several high tides and extensive damage to the sea wall and buildings along the sea front.
Yn Aberystwyth y gwelwyd rhai o’r effeithiau gwaethaf; yno, symudwyd pobl o’u heiddo ar y prom adeg sawl llanw uchel a chafwyd difrod helaeth i wal y prom a’r adeiladau ar hyd y prom.