The responses indicate that 13% of museums are at a medium risk or higher of flooding from rivers, while almost 17% are at a medium risk or higher of flooding from surface water or small watercourses.
Mae'r ymatebion yn awgrymu bod 13% o amgueddfeydd mewn risg ganolig neu'n uwch o lifogydd o afonydd, tra bod bron i 17% mewn risg ganolig neu'n uwch o lifogydd o ddŵr wyneb neu gyrsiau dŵr bach.