Moon · December 2025
Moon calendar for Waterloo, Ontario, Canada: December 2025
Daily moon phases, illumination, moonrise and moonset in Waterloo, Ontario, Canada for December 2025. Full moon: December 4, 2025. All times are shown in the local time of Waterloo, Ontario, Canada.
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% | 2:00 PM | 3:56 AM |
| 2 | Waxing Gibbous | 93% | 2:23 PM | 5:30 AM |
| 3 | Waxing Gibbous | 98% | 3:00 PM | 6:33 AM |
| 4 | Full Moon | 100% | 3:41 PM | 8:07 AM |
| 5 | Full Moon | 99% | 4:28 PM | 9:31 AM |
| 6 | Waning Gibbous | 96% | 5:46 PM | 10:22 AM |
| 7 | Waning Gibbous | 90% | 7:14 PM | 11:20 AM |
| 8 | Waning Gibbous | 82% | 8:23 PM | 11:43 AM |
| 9 | Waning Gibbous | 73% | 9:41 PM | 12:16 PM |
| 10 | Waning Gibbous | 63% | 10:50 PM | 12:26 PM |
| 11 | Last Quarter | 52% | — | 12:45 PM |
| 12 | Last Quarter | 42% | 12:10 AM | 1:24 PM |
| 13 | Waning Crescent | 33% | 1:22 AM | 1:34 PM |
| 14 | Waning Crescent | 24% | 2:20 AM | 1:43 PM |
| 15 | Waning Crescent | 16% | 3:31 AM | 2:13 PM |
| 16 | Waning Crescent | 10% | 4:23 AM | 2:26 PM |
| 17 | Waning Crescent | 5% | 5:34 AM | 3:13 PM |
| 18 | Waning Crescent | 2% | 6:24 AM | 3:42 PM |
| 19 | New Moon | 0% | 7:33 AM | 4:25 PM |
| 20 | New Moon | 0% | 8:19 AM | 5:33 PM |
| 21 | Waxing Crescent | 3% | 9:05 AM | 6:24 PM |
| 22 | Waxing Crescent | 6% | 9:39 AM | 7:37 PM |
| 23 | Waxing Crescent | 12% | 10:15 AM | 8:35 PM |
| 24 | Waxing Crescent | 20% | 10:27 AM | 9:54 PM |
| 25 | Waxing Crescent | 29% | 10:55 AM | 11:20 PM |
| 26 | First Quarter | 40% | 11:30 AM | — |
| 27 | First Quarter | 51% | 11:39 AM | 12:21 AM |
| 28 | Waxing Gibbous | 62% | 12:04 PM | 1:37 AM |
| 29 | Waxing Gibbous | 73% | 12:23 PM | 2:54 AM |
| 30 | Waxing Gibbous | 83% | 12:52 PM | 4:20 AM |
| 31 | Waxing Gibbous | 91% | 1:37 PM | 5:42 AM |
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Frequently asked questions
When is the full moon in December 2025 in Waterloo, Ontario, Canada?
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
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