Moon · December 2025
Moon calendar for Salt Lake City, Utah, United States: December 2025
Daily moon phases, illumination, moonrise and moonset in Salt Lake City, Utah, United States for December 2025. Full moon: December 4, 2025. All times are shown in the local time of Salt Lake City, Utah, United States.
Full moonThursday, December 4, 2025, 4:18 PM
New moonFriday, December 19, 2025, 7:59 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 87% | 2:18 PM | 4:08 AM |
| 2 | Waxing Gibbous | 94% | 2:32 PM | 5:32 AM |
| 3 | Waxing Gibbous | 98% | 3:30 PM | 6:34 AM |
| 4 | Full Moon | 100% | 4:11 PM | 8:06 AM |
| 5 | Waning Gibbous | 99% | 5:12 PM | 9:28 AM |
| 6 | Waning Gibbous | 95% | 6:16 PM | 10:19 AM |
| 7 | Waning Gibbous | 89% | 7:35 PM | 11:15 AM |
| 8 | Waning Gibbous | 81% | 8:36 PM | 11:41 AM |
| 9 | Waning Gibbous | 72% | 10:04 PM | 12:16 PM |
| 10 | Waning Gibbous | 62% | 11:22 PM | 12:27 PM |
| 11 | Last Quarter | 52% | — | 12:57 PM |
| 12 | Last Quarter | 41% | 12:21 AM | 1:29 PM |
| 13 | Waning Crescent | 32% | 1:32 AM | 1:36 PM |
| 14 | Waning Crescent | 23% | 2:24 AM | 1:59 PM |
| 15 | Waning Crescent | 16% | 3:34 AM | 2:21 PM |
| 16 | Waning Crescent | 10% | 4:24 AM | 2:38 PM |
| 17 | Waning Crescent | 5% | 5:35 AM | 3:32 PM |
| 18 | Waning Crescent | 2% | 6:24 AM | 4:06 PM |
| 19 | New Moon | 0% | 7:33 AM | 4:41 PM |
| 20 | New Moon | 1% | 8:19 AM | 5:45 PM |
| 21 | Waxing Crescent | 3% | 9:03 AM | 6:38 PM |
| 22 | Waxing Crescent | 7% | 9:39 AM | 7:51 PM |
| 23 | Waxing Crescent | 13% | 10:15 AM | 9:08 PM |
| 24 | Waxing Crescent | 21% | 10:29 AM | 10:15 PM |
| 25 | Waxing Crescent | 30% | 11:09 AM | 11:31 PM |
| 26 | First Quarter | 41% | 11:34 AM | — |
| 27 | First Quarter | 52% | 11:46 AM | 12:25 AM |
| 28 | Waxing Gibbous | 63% | 12:19 PM | 1:41 AM |
| 29 | Waxing Gibbous | 74% | 12:31 PM | 3:08 AM |
| 30 | Waxing Gibbous | 84% | 1:26 PM | 4:21 AM |
| 31 | Waxing Gibbous | 91% | 1:57 PM | 5:41 AM |
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Frequently asked questions
When is the full moon in December 2025 in Salt Lake City, Utah, United States?
The full moon peaks on Thursday, December 4, 2025, 4:18 PM (local time).
When is the new moon in December 2025?
The new moon falls on Friday, December 19, 2025, 7:59 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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