Moon · December 2025
Moon calendar for Portland, Maine, United States: December 2025
Daily moon phases, illumination, moonrise and moonset in Portland, Maine, United States for December 2025. Full moon: December 4, 2025. All times are shown in the local time of Portland, Maine, United States.
Full moonThursday, December 4, 2025, 6:18 PM
New moonFriday, December 19, 2025, 9:59 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 86% | 1:29 PM | 3:27 AM |
| 2 | Waxing Gibbous | 93% | 1:42 PM | 4:28 AM |
| 3 | Waxing Gibbous | 98% | 2:18 PM | 6:00 AM |
| 4 | Full Moon | 100% | 2:59 PM | 7:32 AM |
| 5 | Full Moon | 99% | 3:53 PM | 8:31 AM |
| 6 | Waning Gibbous | 96% | 5:10 PM | 9:42 AM |
| 7 | Waning Gibbous | 90% | 6:20 PM | 10:25 AM |
| 8 | Waning Gibbous | 82% | 7:41 PM | 11:11 AM |
| 9 | Waning Gibbous | 73% | 8:59 PM | 11:35 AM |
| 10 | Waning Gibbous | 63% | 10:17 PM | 11:48 AM |
| 11 | Last Quarter | 52% | 11:32 PM | 12:16 PM |
| 12 | Last Quarter | 42% | — | 12:24 PM |
| 13 | Waning Crescent | 33% | 12:25 AM | 12:36 PM |
| 14 | Waning Crescent | 24% | 1:37 AM | 1:15 PM |
| 15 | Waning Crescent | 16% | 2:28 AM | 1:33 PM |
| 16 | Waning Crescent | 10% | 3:40 AM | 1:47 PM |
| 17 | Waning Crescent | 5% | 4:34 AM | 2:21 PM |
| 18 | Waning Crescent | 2% | 5:44 AM | 3:02 PM |
| 19 | New Moon | 0% | 6:34 AM | 3:51 PM |
| 20 | New Moon | 0% | 7:38 AM | 4:33 PM |
| 21 | Waxing Crescent | 3% | 8:20 AM | 5:43 PM |
| 22 | Waxing Crescent | 6% | 8:54 AM | 6:43 PM |
| 23 | Waxing Crescent | 12% | 9:34 AM | 8:04 PM |
| 24 | Waxing Crescent | 20% | 9:50 AM | 9:26 PM |
| 25 | Waxing Crescent | 29% | 10:20 AM | 10:22 PM |
| 26 | First Quarter | 40% | 10:28 AM | 11:37 PM |
| 27 | First Quarter | 51% | 10:55 AM | — |
| 28 | Waxing Gibbous | 62% | 11:30 AM | 12:49 AM |
| 29 | Waxing Gibbous | 73% | 11:42 AM | 2:17 AM |
| 30 | Waxing Gibbous | 83% | 12:16 PM | 3:38 AM |
| 31 | Waxing Gibbous | 91% | 12:44 PM | 5:02 AM |
Another city or date
Frequently asked questions
When is the full moon in December 2025 in Portland, Maine, United States?
The full moon peaks on Thursday, December 4, 2025, 6:18 PM (local time).
When is the new moon in December 2025?
The new moon falls on Friday, December 19, 2025, 9:59 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
More for Portland, Maine, United States
Near Portland
- Augusta, Maine, United States
- Concord, New Hampshire, United States
- Manchester, New Hampshire, United States
- Nashua, New Hampshire, United States
- Lowell, Massachusetts, United States
- Boston, Massachusetts, United States
- Cambridge, Massachusetts, United States
- Quincy, Massachusetts, United States
- Bangor, Maine, United States
- Bar Harbor, Maine, United States
- Montpelier, Vermont, United States
- Worcester, Massachusetts, United States