Calendr
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December 2025
| M | T | W | T | F | S | S |
| 1 Ffugarholiadau bl 11,12,13 | 2 Ffugarholiadau bl 11,12,13 | 3 Brechiadau Ffliw (7-11) Ffugarholiadau bl 11,12,13 | 4 Ffugarholiadau bl 11,12,13 | 5 Ffugarholiadau bl 11,12,13 | 6 Ffugarholiadau bl 11,12,13 | 7 Ffugarholiadau bl 11,12,13 |
| 8 Ffugarholiadau bl 11,12,13 | 9 Ffugarholiadau bl 11,12,13 | 10 Ffair Gyrfau | 11 | 12 | 13 | 14 |
| 15 Lluniau Blwyddyn 11 | 16 | 17 | 18 | 19 Diwrnod olaf y tymor | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 | 31 |