An average of 5.3% of half-day school sessions were recorded as unauthorised absence for pupils aged 5 to 15 over the latest week, higher than 4.2% the week before.
Mae disgyblion sydd â hawl i brydau ysgol am ddim wedi bod yn llai tebygol o fynychu’r ysgol, gyda’r bwlch ar gyfartaledd yn 4.5 pwynt canran rhwng 13 i 17 Mehefin 2022.