Cliciwch ar y ddolen isod i weld dyddiadau'r tymor ac adegau gwyliau ysgol.

Click on the link below to access term dates and holidays:

Academic Year: 2026-2027

Dyddiau HMS 2026-27 INSET Days

01/09/26

02/09/26

TBC

18/06/27

19/07/27

20/07/27

Good Friday

26/03/27

May Day

03/05/27