Moon · September 2025
Moon calendar for Sioux Falls, South Dakota, United States: September 2025
Daily moon phases, illumination, moonrise and moonset in Sioux Falls, South Dakota, United States for September 2025. Full moon: September 7, 2025. All times are shown in the local time of Sioux Falls, South Dakota, United States.
Full moonSunday, September 7, 2025, 2:53 PM
New moonSunday, September 21, 2025, 11:49 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 64% | 4:19 PM | 12:21 AM |
| 2 | Waxing Gibbous | 73% | 5:02 PM | 1:25 AM |
| 3 | Waxing Gibbous | 82% | 5:41 PM | 2:17 AM |
| 4 | Waxing Gibbous | 89% | 6:19 PM | 3:31 AM |
| 5 | Waxing Gibbous | 95% | 6:32 PM | 4:26 AM |
| 6 | Waxing Gibbous | 98% | 7:25 PM | 5:42 AM |
| 7 | Full Moon | 100% | 7:36 PM | 6:59 AM |
| 8 | Full Moon | 99% | 7:48 PM | 8:17 AM |
| 9 | Waning Gibbous | 95% | 8:18 PM | 9:34 AM |
| 10 | Waning Gibbous | 89% | 8:28 PM | 10:41 AM |
| 11 | Waning Gibbous | 81% | 9:12 PM | 12:15 PM |
| 12 | Waning Gibbous | 71% | 9:40 PM | 1:38 PM |
| 13 | Last Quarter | 59% | 10:21 PM | 2:54 PM |
| 14 | Last Quarter | 48% | 11:31 PM | 4:12 PM |
| 15 | Waning Crescent | 36% | — | 5:16 PM |
| 16 | Waning Crescent | 26% | 12:27 AM | 5:47 PM |
| 17 | Waning Crescent | 17% | 1:52 AM | 6:22 PM |
| 18 | Waning Crescent | 9% | 3:21 AM | 6:26 PM |
| 19 | Waning Crescent | 4% | 4:24 AM | 7:21 PM |
| 20 | New Moon | 1% | 5:39 AM | 7:33 PM |
| 21 | New Moon | 0% | 6:33 AM | 7:40 PM |
| 22 | New Moon | 1% | 7:47 AM | 8:03 PM |
| 23 | Waxing Crescent | 4% | 8:46 AM | 8:20 PM |
| 24 | Waxing Crescent | 8% | 9:56 AM | 8:30 PM |
| 25 | Waxing Crescent | 14% | 11:03 AM | 9:16 PM |
| 26 | Waxing Crescent | 21% | 12:08 PM | 9:38 PM |
| 27 | Waxing Crescent | 30% | 1:14 PM | 10:19 PM |
| 28 | Waxing Crescent | 39% | 2:07 PM | 11:14 PM |
| 29 | First Quarter | 48% | 2:49 PM | — |
| 30 | First Quarter | 58% | 3:39 PM | 12:06 AM |
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Frequently asked questions
When is the full moon in September 2025 in Sioux Falls, South Dakota, United States?
The full moon peaks on Sunday, September 7, 2025, 2:53 PM (local time).
When is the new moon in September 2025?
The new moon falls on Sunday, September 21, 2025, 11:49 AM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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