Moon · October 2027
Moon calendar for Boulder, Colorado, United States: October 2027
Daily moon phases, illumination, moonrise and moonset in Boulder, Colorado, United States for October 2027. Full moon: October 15, 2027. All times are shown in the local time of Boulder, Colorado, United States.
Full moonFriday, October 15, 2027, 1:55 PM
New moonFriday, October 29, 2027, 5:45 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Crescent | 4% | 8:27 AM | 7:38 PM |
| 2 | Waxing Crescent | 9% | 9:42 AM | 8:17 PM |
| 3 | Waxing Crescent | 16% | 10:43 AM | 8:49 PM |
| 4 | Waxing Crescent | 24% | 11:54 AM | 9:40 PM |
| 5 | Waxing Crescent | 33% | 12:45 PM | 10:27 PM |
| 6 | First Quarter | 43% | 1:41 PM | 11:36 PM |
| 7 | First Quarter | 53% | 2:23 PM | — |
| 8 | Waxing Gibbous | 62% | 2:54 PM | 12:25 AM |
| 9 | Waxing Gibbous | 71% | 3:34 PM | 1:35 AM |
| 10 | Waxing Gibbous | 79% | 3:47 PM | 2:25 AM |
| 11 | Waxing Gibbous | 86% | 4:19 PM | 3:35 AM |
| 12 | Waxing Gibbous | 92% | 4:27 PM | 4:25 AM |
| 13 | Waxing Gibbous | 96% | 4:49 PM | 5:34 AM |
| 14 | Full Moon | 99% | 5:30 PM | 6:25 AM |
| 15 | Full Moon | 100% | 5:41 PM | 7:37 AM |
| 16 | Waning Gibbous | 99% | 6:17 PM | 8:34 AM |
| 17 | Waning Gibbous | 95% | 6:37 PM | 9:51 AM |
| 18 | Waning Gibbous | 89% | 7:36 PM | 11:14 AM |
| 19 | Waning Gibbous | 82% | 8:24 PM | 12:16 PM |
| 20 | Waning Gibbous | 72% | 9:37 PM | 1:25 PM |
| 21 | Waning Gibbous | 61% | 10:40 PM | 2:07 PM |
| 22 | Last Quarter | 49% | — | 2:36 PM |
| 23 | Waning Crescent | 38% | 12:15 AM | 3:31 PM |
| 24 | Waning Crescent | 27% | 1:34 AM | 3:49 PM |
| 25 | Waning Crescent | 17% | 2:31 AM | 4:19 PM |
| 26 | Waning Crescent | 9% | 3:53 AM | 4:32 PM |
| 27 | Waning Crescent | 4% | 5:54 AM | 5:23 PM |
| 28 | New Moon | 1% | 6:21 AM | 5:37 PM |
| 29 | New Moon | 0% | 7:35 AM | 6:16 PM |
| 30 | Waxing Crescent | 2% | 8:28 AM | 6:59 PM |
| 31 | Waxing Crescent | 6% | 9:42 AM | 7:37 PM |
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Frequently asked questions
When is the full moon in October 2027 in Boulder, Colorado, United States?
The full moon peaks on Friday, October 15, 2027, 1:55 PM (local time).
When is the new moon in October 2027?
The new moon falls on Friday, October 29, 2027, 5:45 AM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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