Moon · December 2026
Moon calendar for Casper, Wyoming, United States: December 2026
Daily moon phases, illumination, moonrise and moonset in Casper, Wyoming, United States for December 2026. Full moon: December 23, 2026. All times are shown in the local time of Casper, Wyoming, United States.
Full moonWednesday, December 23, 2026, 6:16 PM
New moonTuesday, December 8, 2026, 4:17 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Last Quarter | 45% | — | 1:12 PM |
| 2 | Waning Crescent | 34% | 12:24 AM | 1:32 PM |
| 3 | Waning Crescent | 25% | 1:38 AM | 1:42 PM |
| 4 | Waning Crescent | 16% | 2:33 AM | 2:13 PM |
| 5 | Waning Crescent | 9% | 3:51 AM | 2:26 PM |
| 6 | Waning Crescent | 5% | 5:03 AM | 3:13 PM |
| 7 | Waning Crescent | 1% | 6:10 AM | 3:40 PM |
| 8 | New Moon | 0% | 7:15 AM | 4:22 PM |
| 9 | New Moon | 1% | 8:02 AM | 5:26 PM |
| 10 | Waxing Crescent | 3% | 8:37 AM | 6:14 PM |
| 11 | Waxing Crescent | 7% | 9:34 AM | 7:24 PM |
| 12 | Waxing Crescent | 13% | 9:59 AM | 8:18 PM |
| 13 | Waxing Crescent | 19% | 10:24 AM | 9:30 PM |
| 14 | Waxing Crescent | 28% | 10:39 AM | 10:22 PM |
| 15 | Waxing Crescent | 37% | 11:22 AM | 11:34 PM |
| 16 | First Quarter | 47% | 11:36 AM | — |
| 17 | First Quarter | 57% | 11:48 AM | 12:27 AM |
| 18 | Waxing Gibbous | 68% | 12:18 PM | 1:41 AM |
| 19 | Waxing Gibbous | 78% | 12:28 PM | 2:57 AM |
| 20 | Waxing Gibbous | 86% | 1:17 PM | 4:17 AM |
| 21 | Waxing Gibbous | 93% | 1:42 PM | 5:37 AM |
| 22 | Waxing Gibbous | 98% | 2:25 PM | 6:41 AM |
| 23 | Full Moon | 100% | 3:37 PM | 8:00 AM |
| 24 | Full Moon | 99% | 4:42 PM | 8:54 AM |
| 25 | Waning Gibbous | 96% | 6:07 PM | 9:40 AM |
| 26 | Waning Gibbous | 90% | 7:36 PM | 10:18 AM |
| 27 | Waning Gibbous | 82% | 8:43 PM | 10:32 AM |
| 28 | Waning Gibbous | 72% | 10:05 PM | 11:17 AM |
| 29 | Waning Gibbous | 62% | 11:31 PM | 11:33 AM |
| 30 | Last Quarter | 51% | — | 11:38 AM |
| 31 | Last Quarter | 40% | 12:25 AM | 12:16 PM |
Another city or date
Frequently asked questions
When is the full moon in December 2026 in Casper, Wyoming, United States?
The full moon peaks on Wednesday, December 23, 2026, 6:16 PM (local time).
When is the new moon in December 2026?
The new moon falls on Tuesday, December 8, 2026, 4:17 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
More for Casper, Wyoming, United States
Near Casper
- Gillette, Wyoming, United States
- Laramie, Wyoming, United States
- Cheyenne, Wyoming, United States
- Fort Collins, Colorado, United States
- Rapid City, South Dakota, United States
- Cody, Wyoming, United States
- Greeley, Colorado, United States
- Boulder, Colorado, United States
- Thornton, Colorado, United States
- Westminster, Colorado, United States
- Arvada, Colorado, United States
- Denver, Colorado, United States