Moon · August 2027
Moon calendar for Boulder, Colorado, United States: August 2027
Daily moon phases, illumination, moonrise and moonset in Boulder, Colorado, United States for August 2027. Full moon: August 17, 2027. All times are shown in the local time of Boulder, Colorado, United States.
Full moonTuesday, August 17, 2027, 2:36 AM
New moonMonday, August 2, 2027, 3:23 AM
New moonTuesday, August 31, 2027, 9:42 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | New Moon | 1% | 4:25 AM | 8:21 PM |
| 2 | New Moon | 0% | 5:47 AM | 8:47 PM |
| 3 | Waxing Crescent | 3% | 7:16 AM | 9:31 PM |
| 4 | Waxing Crescent | 8% | 8:24 AM | 9:44 PM |
| 5 | Waxing Crescent | 15% | 9:38 AM | 10:18 PM |
| 6 | Waxing Crescent | 24% | 10:35 AM | 10:29 PM |
| 7 | Waxing Crescent | 34% | 11:55 AM | 11:22 PM |
| 8 | First Quarter | 45% | 1:16 PM | 11:39 PM |
| 9 | First Quarter | 55% | 2:17 PM | — |
| 10 | Waxing Gibbous | 65% | 3:28 PM | 12:20 AM |
| 11 | Waxing Gibbous | 74% | 4:18 PM | 1:13 AM |
| 12 | Waxing Gibbous | 82% | 5:17 PM | 1:53 AM |
| 13 | Waxing Gibbous | 89% | 5:46 PM | 2:43 AM |
| 14 | Waxing Gibbous | 94% | 6:24 PM | 3:46 AM |
| 15 | Waxing Gibbous | 98% | 6:48 PM | 4:42 AM |
| 16 | Full Moon | 100% | 7:31 PM | 5:47 AM |
| 17 | Full Moon | 100% | 7:41 PM | 6:42 AM |
| 18 | Waning Gibbous | 98% | 8:11 PM | 7:45 AM |
| 19 | Waning Gibbous | 95% | 8:25 PM | 8:41 AM |
| 20 | Waning Gibbous | 89% | 8:36 PM | 9:49 AM |
| 21 | Waning Gibbous | 82% | 9:25 PM | 10:58 AM |
| 22 | Waning Gibbous | 73% | 9:40 PM | 12:10 PM |
| 23 | Waning Gibbous | 63% | 10:19 PM | 1:28 PM |
| 24 | Last Quarter | 53% | 10:58 PM | 2:24 PM |
| 25 | Last Quarter | 41% | 11:50 PM | 3:39 PM |
| 26 | Waning Crescent | 30% | — | 4:31 PM |
| 27 | Waning Crescent | 20% | 12:56 AM | 5:37 PM |
| 28 | Waning Crescent | 12% | 2:15 AM | 6:19 PM |
| 29 | Waning Crescent | 5% | 3:35 AM | 6:43 PM |
| 30 | Waning Crescent | 1% | 4:37 AM | 7:32 PM |
| 31 | New Moon | 0% | 6:11 AM | 7:39 PM |
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Frequently asked questions
When is the full moon in August 2027 in Boulder, Colorado, United States?
The full moon peaks on Tuesday, August 17, 2027, 2:36 AM (local time).
When is the new moon in August 2027?
The new moon falls on Monday, August 2, 2027, 3:23 AM; Tuesday, August 31, 2027, 9:42 AM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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