Moon · September 2026
Moon calendar for Sioux City, Iowa, United States: September 2026
Daily moon phases, illumination, moonrise and moonset in Sioux City, Iowa, United States for September 2026. Full moon: September 26, 2026. All times are shown in the local time of Sioux City, Iowa, United States.
Full moonSaturday, September 26, 2026, 4:33 PM
New moonThursday, September 10, 2026, 7:18 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Gibbous | 78% | 9:34 PM | 12:17 PM |
| 2 | Waning Gibbous | 68% | 10:05 PM | 1:37 PM |
| 3 | Last Quarter | 57% | 10:36 PM | 2:47 PM |
| 4 | Last Quarter | 45% | 11:42 PM | 4:10 PM |
| 5 | Waning Crescent | 33% | — | 5:21 PM |
| 6 | Waning Crescent | 23% | 12:49 AM | 6:00 PM |
| 7 | Waning Crescent | 14% | 2:15 AM | 6:28 PM |
| 8 | Waning Crescent | 7% | 3:37 AM | 7:18 PM |
| 9 | Waning Crescent | 2% | 4:46 AM | 7:35 PM |
| 10 | New Moon | 0% | 6:29 AM | 7:48 PM |
| 11 | New Moon | 1% | 7:31 AM | 8:17 PM |
| 12 | Waxing Crescent | 3% | 8:26 AM | 8:26 PM |
| 13 | Waxing Crescent | 8% | 9:38 AM | 8:55 PM |
| 14 | Waxing Crescent | 14% | 10:33 AM | 9:32 PM |
| 15 | Waxing Crescent | 22% | 11:47 AM | 9:48 PM |
| 16 | Waxing Crescent | 31% | 12:46 PM | 10:24 PM |
| 17 | Waxing Crescent | 40% | 1:51 PM | 11:23 PM |
| 18 | First Quarter | 49% | 2:36 PM | — |
| 19 | First Quarter | 58% | 3:37 PM | 12:04 AM |
| 20 | Waxing Gibbous | 67% | 4:16 PM | 12:59 AM |
| 21 | Waxing Gibbous | 76% | 4:34 PM | 2:02 AM |
| 22 | Waxing Gibbous | 84% | 5:25 PM | 3:12 AM |
| 23 | Waxing Gibbous | 90% | 5:38 PM | 4:13 AM |
| 24 | Waxing Gibbous | 95% | 5:58 PM | 5:27 AM |
| 25 | Waxing Gibbous | 99% | 6:22 PM | 6:21 AM |
| 26 | Full Moon | 100% | 6:29 PM | 7:34 AM |
| 27 | Waning Gibbous | 99% | 7:07 PM | 8:30 AM |
| 28 | Waning Gibbous | 95% | 7:34 PM | 9:52 AM |
| 29 | Waning Gibbous | 89% | 7:59 PM | 11:25 AM |
| 30 | Waning Gibbous | 81% | 8:28 PM | 12:27 PM |
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Frequently asked questions
When is the full moon in September 2026 in Sioux City, Iowa, United States?
The full moon peaks on Saturday, September 26, 2026, 4:33 PM (local time).
When is the new moon in September 2026?
The new moon falls on Thursday, September 10, 2026, 7:18 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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