Performance against the 12-hour target for emergency departments improved slightly in June and the majority of people were discharged, admitted or transferred less than two hours and 50 minutes.
Roedd canran y cleifion sy’n treulio llai na 4 awr mewn adrannau Damweiniau ac Achosion Brys wedi gwella ac roedd nifer y cleifion sy’n treulio dros 12 awr yno wedi lleihau ers y mis blaenorol.