Moon · December 2025
Moon calendar for Round Rock, Texas, United States: December 2025
Daily moon phases, illumination, moonrise and moonset in Round Rock, Texas, United States for December 2025. Full moon: December 4, 2025. All times are shown in the local time of Round Rock, Texas, United States.
Full moonThursday, December 4, 2025, 5:18 PM
New moonFriday, December 19, 2025, 8:59 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 87% | 2:28 PM | 3:43 AM |
| 2 | Waxing Gibbous | 93% | 3:25 PM | 4:57 AM |
| 3 | Waxing Gibbous | 98% | 3:55 PM | 6:15 AM |
| 4 | Full Moon | 100% | 4:37 PM | 7:32 AM |
| 5 | Waning Gibbous | 99% | 5:46 PM | 8:26 AM |
| 6 | Waning Gibbous | 95% | 6:52 PM | 9:37 AM |
| 7 | Waning Gibbous | 89% | 8:14 PM | 10:24 AM |
| 8 | Waning Gibbous | 82% | 9:28 PM | 11:27 AM |
| 9 | Waning Gibbous | 72% | 10:24 PM | 11:38 AM |
| 10 | Waning Gibbous | 62% | 11:34 PM | 12:21 PM |
| 11 | Last Quarter | 52% | — | 12:35 PM |
| 12 | Last Quarter | 42% | 12:25 AM | 1:29 PM |
| 13 | Waning Crescent | 32% | 1:32 AM | 1:40 PM |
| 14 | Waning Crescent | 24% | 2:21 AM | 2:17 PM |
| 15 | Waning Crescent | 16% | 3:23 AM | 2:31 PM |
| 16 | Waning Crescent | 10% | 4:17 AM | 3:28 PM |
| 17 | Waning Crescent | 5% | 5:08 AM | 3:48 PM |
| 18 | Waning Crescent | 2% | 5:58 AM | 4:27 PM |
| 19 | New Moon | 0% | 6:44 AM | 5:33 PM |
| 20 | New Moon | 1% | 7:42 AM | 6:20 PM |
| 21 | Waxing Crescent | 3% | 8:26 AM | 7:30 PM |
| 22 | Waxing Crescent | 7% | 9:27 AM | 8:20 PM |
| 23 | Waxing Crescent | 13% | 9:48 AM | 9:30 PM |
| 24 | Waxing Crescent | 20% | 10:26 AM | 10:21 PM |
| 25 | Waxing Crescent | 30% | 10:57 AM | 11:31 PM |
| 26 | First Quarter | 40% | 11:36 AM | — |
| 27 | First Quarter | 51% | 12:01 PM | 12:23 AM |
| 28 | Waxing Gibbous | 63% | 12:27 PM | 1:34 AM |
| 29 | Waxing Gibbous | 74% | 1:20 PM | 2:29 AM |
| 30 | Waxing Gibbous | 83% | 1:45 PM | 3:45 AM |
| 31 | Waxing Gibbous | 91% | 2:28 PM | 5:15 AM |
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Frequently asked questions
When is the full moon in December 2025 in Round Rock, Texas, United States?
The full moon peaks on Thursday, December 4, 2025, 5:18 PM (local time).
When is the new moon in December 2025?
The new moon falls on Friday, December 19, 2025, 8:59 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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