Moon · May 2026
Moon calendar for Sioux Falls, South Dakota, United States: May 2026
Daily moon phases, illumination, moonrise and moonset in Sioux Falls, South Dakota, United States for May 2026. Full moon: May 1, 2026, May 31, 2026. All times are shown in the local time of Sioux Falls, South Dakota, United States.
Full moonFriday, May 1, 2026, 12:27 PM
Full moonSunday, May 31, 2026, 3:55 AM
New moonSaturday, May 16, 2026, 2:30 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Full Moon | 100% | 8:33 PM | 6:19 AM |
| 2 | Waning Gibbous | 99% | 9:45 PM | 6:35 AM |
| 3 | Waning Gibbous | 96% | 10:38 PM | 7:29 AM |
| 4 | Waning Gibbous | 91% | 11:42 PM | 7:59 AM |
| 5 | Waning Gibbous | 86% | — | 8:20 AM |
| 6 | Waning Gibbous | 78% | 12:25 AM | 9:42 AM |
| 7 | Waning Gibbous | 70% | 1:23 AM | 10:37 AM |
| 8 | Waning Gibbous | 61% | 1:44 AM | 11:48 AM |
| 9 | Last Quarter | 51% | 2:19 AM | 1:02 PM |
| 10 | Last Quarter | 40% | 2:29 AM | 2:13 PM |
| 11 | Waning Crescent | 30% | 3:05 AM | 3:30 PM |
| 12 | Waning Crescent | 21% | 3:32 AM | 4:24 PM |
| 13 | Waning Crescent | 13% | 3:41 AM | 5:41 PM |
| 14 | Waning Crescent | 6% | 4:09 AM | 7:06 PM |
| 15 | Waning Crescent | 2% | 4:24 AM | 8:22 PM |
| 16 | New Moon | 0% | 4:58 AM | 9:47 PM |
| 17 | Waxing Crescent | 1% | 5:38 AM | 11:10 PM |
| 18 | Waxing Crescent | 5% | 6:23 AM | — |
| 19 | Waxing Crescent | 12% | 7:37 AM | 12:14 AM |
| 20 | Waxing Crescent | 20% | 8:44 AM | 1:13 AM |
| 21 | Waxing Crescent | 30% | 10:15 AM | 1:44 AM |
| 22 | First Quarter | 41% | 11:37 AM | 2:18 AM |
| 23 | First Quarter | 52% | 12:40 PM | 2:30 AM |
| 24 | Waxing Gibbous | 63% | 2:07 PM | 3:07 AM |
| 25 | Waxing Gibbous | 73% | 3:24 PM | 3:31 AM |
| 26 | Waxing Gibbous | 81% | 4:22 PM | 3:37 AM |
| 27 | Waxing Gibbous | 88% | 5:34 PM | 4:00 AM |
| 28 | Waxing Gibbous | 94% | 6:26 PM | 4:21 AM |
| 29 | Waxing Gibbous | 98% | 7:38 PM | 4:38 AM |
| 30 | Full Moon | 99% | 8:29 PM | 5:29 AM |
| 31 | Full Moon | 100% | 9:38 PM | 5:53 AM |
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Frequently asked questions
When is the full moon in May 2026 in Sioux Falls, South Dakota, United States?
The full moon peaks on Friday, May 1, 2026, 12:27 PM; Sunday, May 31, 2026, 3:55 AM (local time).
When is the new moon in May 2026?
The new moon falls on Saturday, May 16, 2026, 2:30 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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