Moon · August 2025
Moon calendar for Sioux City, Iowa, United States: August 2025
Daily moon phases, illumination, moonrise and moonset in Sioux City, Iowa, United States for August 2025. Full moon: August 9, 2025. All times are shown in the local time of Sioux City, Iowa, United States.
Full moonSaturday, August 9, 2025, 3:33 AM
New moonFriday, August 22, 2025, 10:32 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | First Quarter | 52% | 2:18 PM | 12:16 AM |
| 2 | Waxing Gibbous | 61% | 3:29 PM | 12:27 AM |
| 3 | Waxing Gibbous | 70% | 4:20 PM | 1:17 AM |
| 4 | Waxing Gibbous | 79% | 5:29 PM | 1:42 AM |
| 5 | Waxing Gibbous | 86% | 6:15 PM | 2:25 AM |
| 6 | Waxing Gibbous | 92% | 7:00 PM | 3:34 AM |
| 7 | Waxing Gibbous | 97% | 7:39 PM | 4:25 AM |
| 8 | Full Moon | 99% | 8:16 PM | 5:38 AM |
| 9 | Full Moon | 100% | 8:29 PM | 6:35 AM |
| 10 | Waning Gibbous | 98% | 9:12 PM | 8:06 AM |
| 11 | Waning Gibbous | 94% | 9:34 PM | 9:28 AM |
| 12 | Waning Gibbous | 87% | 9:45 PM | 10:24 AM |
| 13 | Waning Gibbous | 78% | 10:17 PM | 11:43 AM |
| 14 | Waning Gibbous | 68% | 10:28 PM | 1:16 PM |
| 15 | Last Quarter | 56% | 11:21 PM | 2:24 PM |
| 16 | Last Quarter | 44% | 11:47 PM | 3:47 PM |
| 17 | Waning Crescent | 33% | — | 5:19 PM |
| 18 | Waning Crescent | 22% | 12:30 AM | 6:17 PM |
| 19 | Waning Crescent | 14% | 1:44 AM | 7:18 PM |
| 20 | Waning Crescent | 7% | 2:59 AM | 7:45 PM |
| 21 | Waning Crescent | 2% | 4:18 AM | 8:19 PM |
| 22 | New Moon | 0% | 5:36 AM | 8:31 PM |
| 23 | New Moon | 0% | 6:32 AM | 9:06 PM |
| 24 | Waxing Crescent | 3% | 7:48 AM | 9:30 PM |
| 25 | Waxing Crescent | 7% | 8:52 AM | 9:36 PM |
| 26 | Waxing Crescent | 12% | 10:00 AM | 9:52 PM |
| 27 | Waxing Crescent | 19% | 11:06 AM | 10:18 PM |
| 28 | Waxing Crescent | 27% | 12:09 PM | 10:29 PM |
| 29 | Waxing Crescent | 36% | 1:19 PM | 11:17 PM |
| 30 | First Quarter | 45% | 2:15 PM | 11:40 PM |
| 31 | First Quarter | 55% | 3:18 PM | — |
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Frequently asked questions
When is the full moon in August 2025 in Sioux City, Iowa, United States?
The full moon peaks on Saturday, August 9, 2025, 3:33 AM (local time).
When is the new moon in August 2025?
The new moon falls on Friday, August 22, 2025, 10:32 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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