Moon calendar: December 2025

Moon phases in December 2025, in UK time: full moon – 4 December 23:15, last quarter – 11 December 20:52, new moon – 20 December 01:44, first quarter – 27 December 19:10.

• Full moon 4 December, Thursday 23:15
• Last quarter 11 December, Thursday 20:52
• New moon 20 December, Saturday 01:44
• First quarter 27 December, Saturday 19:10

Daily moon phases

Mo

Tu

We

Th

Fr

Sa

Su

1 83 %

2 91 %

3 97 %

4 Full moon 23:15

5 100 %

6 96 %

7 91 %

8 83 %

9 74 %

10 64 %

11 Last quarter 20:52

12 44 %

13 34 %

14 26 %

15 18 %

16 11 %

17 6 %

18 2 %

19 0 %

20 New moon 01:44

21 2 %

22 5 %

23 11 %

24 18 %

25 26 %

26 36 %

27 First quarter 19:10

28 58 %

29 69 %

30 79 %

31 88 %

Times are UK local time. Percentages show the fraction of the Moon’s disc illuminated at local noon.

Moon image: NASA Scientific Visualization Studio (public domain).

All full moons and moon phases in 2025 Moon phase today