Decembeard
1 – 31 December 2025
Universal month for human rights
1 – 31 December 2025
Christmas eve Christian
24 December 2025
Noson Gyflaith (Toffee Evening)
24 December 2025
Christmas day Christian
25 December 2025
(Early Morning)Plygain
25 December 2025
Mari Lwyd (The Grey Mare)
25 December 2025 – 6 January 2026
Boxing day
26 December 2025
Feast of saint Stephen Christian
26 December 2025
Gŵyl San Steffan (St. Stephen's Day / Boxing Day)
26 December 2025
.png)
Kwanzaa
26 December 2025 – 1 January 2026
.png)
Zartosht no-diso Zoroastrian
26 December 2025
Feast of the holy family Catholic Christian
28 December 2025
Holy innocents’ day Christian
28 December 2025
New year’s eve
31 December 2025
Nos Galan (New Year's Eve)
31 December 2025
Watch night Christian
31 December 2025
Cervical cancer awareness month
1 – 31 January 2026
.png)
Dry January
1 – 31 January 2026
Hatsumode Shinto
1 – 7 January 2026
.png)
Thyroid awareness month.
1 – 31 January 2026
Mahayana new year **
3 – 5 January 2026