Moon · September 2026
Moon calendar for Chicago, Illinois, United States: September 2026
Daily moon phases, illumination, moonrise and moonset in Chicago, Illinois, United States for September 2026. Full moon: September 26, 2026. All times are shown in the local time of Chicago, Illinois, 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% | 8:47 PM | 11:37 AM |
| 2 | Waning Gibbous | 68% | 9:34 PM | 12:49 PM |
| 3 | Last Quarter | 57% | 10:15 PM | 2:16 PM |
| 4 | Last Quarter | 45% | 11:20 PM | 3:35 PM |
| 5 | Waning Crescent | 33% | — | 4:26 PM |
| 6 | Waning Crescent | 23% | 12:20 AM | 5:31 PM |
| 7 | Waning Crescent | 14% | 1:39 AM | 6:00 PM |
| 8 | Waning Crescent | 7% | 3:00 AM | 6:24 PM |
| 9 | Waning Crescent | 2% | 4:20 AM | 6:49 PM |
| 10 | New Moon | 0% | 5:37 AM | 7:29 PM |
| 11 | New Moon | 1% | 6:32 AM | 7:37 PM |
| 12 | Waxing Crescent | 3% | 7:50 AM | 8:01 PM |
| 13 | Waxing Crescent | 8% | 9:02 AM | 8:21 PM |
| 14 | Waxing Crescent | 14% | 10:12 AM | 8:43 PM |
| 15 | Waxing Crescent | 22% | 11:22 AM | 9:30 PM |
| 16 | Waxing Crescent | 31% | 12:18 PM | 9:52 PM |
| 17 | Waxing Crescent | 40% | 1:25 PM | 10:29 PM |
| 18 | First Quarter | 49% | 2:15 PM | 11:34 PM |
| 19 | First Quarter | 58% | 2:50 PM | — |
| 20 | Waxing Gibbous | 67% | 3:37 PM | 12:22 AM |
| 21 | Waxing Gibbous | 76% | 4:12 PM | 1:33 AM |
| 22 | Waxing Gibbous | 84% | 4:28 PM | 2:24 AM |
| 23 | Waxing Gibbous | 90% | 5:03 PM | 3:35 AM |
| 24 | Waxing Gibbous | 95% | 5:33 PM | 4:28 AM |
| 25 | Waxing Gibbous | 99% | 5:41 PM | 5:40 AM |
| 26 | Full Moon | 100% | 6:11 PM | 6:42 AM |
| 27 | Waning Gibbous | 99% | 6:25 PM | 8:06 AM |
| 28 | Waning Gibbous | 95% | 6:47 PM | 9:29 AM |
| 29 | Waning Gibbous | 89% | 7:33 PM | 10:27 AM |
| 30 | Waning Gibbous | 81% | 8:10 PM | 11:49 AM |
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Frequently asked questions
When is the full moon in September 2026 in Chicago, Illinois, 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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