Moon · October 2025
Moon calendar for Helena, Montana, United States: October 2025
Daily moon phases, illumination, moonrise and moonset in Helena, Montana, United States for October 2025. Full moon: October 7, 2025. All times are shown in the local time of Helena, Montana, United States.
Full moonTuesday, October 7, 2025, 12:35 AM
New moonTuesday, October 21, 2025, 5:45 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 68% | 4:23 PM | 1:03 AM |
| 2 | Waxing Gibbous | 77% | 4:49 PM | 2:15 AM |
| 3 | Waxing Gibbous | 86% | 5:29 PM | 3:34 AM |
| 4 | Waxing Gibbous | 92% | 5:38 PM | 4:32 AM |
| 5 | Waxing Gibbous | 97% | 5:54 PM | 6:00 AM |
| 6 | Full Moon | 100% | 6:18 PM | 7:29 AM |
| 7 | Full Moon | 99% | 6:26 PM | 8:29 AM |
| 8 | Waning Gibbous | 97% | 6:51 PM | 10:06 AM |
| 9 | Waning Gibbous | 91% | 7:31 PM | 11:37 AM |
| 10 | Waning Gibbous | 83% | 8:04 PM | 12:57 PM |
| 11 | Waning Gibbous | 74% | 8:51 PM | 2:18 PM |
| 12 | Waning Gibbous | 63% | 10:05 PM | 3:30 PM |
| 13 | Last Quarter | 51% | 11:30 PM | 4:08 PM |
| 14 | Last Quarter | 40% | — | 4:31 PM |
| 15 | Waning Crescent | 30% | 12:34 AM | 5:08 PM |
| 16 | Waning Crescent | 20% | 2:10 AM | 5:32 PM |
| 17 | Waning Crescent | 13% | 3:31 AM | 5:37 PM |
| 18 | Waning Crescent | 7% | 4:26 AM | 5:47 PM |
| 19 | Waning Crescent | 3% | 5:41 AM | 6:11 PM |
| 20 | New Moon | 0% | 6:39 AM | 6:21 PM |
| 21 | New Moon | 0% | 7:54 AM | 6:30 PM |
| 22 | Waxing Crescent | 2% | 9:06 AM | 7:07 PM |
| 23 | Waxing Crescent | 5% | 10:13 AM | 7:35 PM |
| 24 | Waxing Crescent | 10% | 11:10 AM | 8:07 PM |
| 25 | Waxing Crescent | 16% | 12:18 PM | 8:34 PM |
| 26 | Waxing Crescent | 24% | 1:13 PM | 9:43 PM |
| 27 | Waxing Crescent | 32% | 1:48 PM | 10:36 PM |
| 28 | First Quarter | 42% | 2:23 PM | 11:55 PM |
| 29 | First Quarter | 52% | 2:52 PM | — |
| 30 | Waxing Gibbous | 62% | 3:31 PM | 1:21 AM |
| 31 | Waxing Gibbous | 73% | 3:40 PM | 2:22 AM |
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Frequently asked questions
When is the full moon in October 2025 in Helena, Montana, United States?
The full moon peaks on Tuesday, October 7, 2025, 12:35 AM (local time).
When is the new moon in October 2025?
The new moon falls on Tuesday, October 21, 2025, 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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