Moon · September 2026
Moon calendar for Key West, Florida, United States: September 2026
Daily moon phases, illumination, moonrise and moonset in Key West, Florida, United States for September 2026. Full moon: September 26, 2026. All times are shown in the local time of Key West, Florida, United States.
Full moonSaturday, September 26, 2026, 5:33 PM
New moonThursday, September 10, 2026, 8:18 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Gibbous | 79% | 10:19 PM | 11:33 AM |
| 2 | Waning Gibbous | 69% | 10:58 PM | 12:28 PM |
| 3 | Last Quarter | 57% | 11:49 PM | 1:42 PM |
| 4 | Last Quarter | 46% | — | 2:51 PM |
| 5 | Waning Crescent | 34% | 12:45 AM | 4:02 PM |
| 6 | Waning Crescent | 23% | 2:03 AM | 4:56 PM |
| 7 | Waning Crescent | 14% | 3:22 AM | 5:42 PM |
| 8 | Waning Crescent | 7% | 4:23 AM | 6:24 PM |
| 9 | Waning Crescent | 2% | 5:34 AM | 7:21 PM |
| 10 | New Moon | 0% | 6:26 AM | 7:37 PM |
| 11 | New Moon | 1% | 7:34 AM | 8:19 PM |
| 12 | Waxing Crescent | 3% | 8:25 AM | 8:36 PM |
| 13 | Waxing Crescent | 8% | 9:30 AM | 9:30 PM |
| 14 | Waxing Crescent | 14% | 10:20 AM | 9:56 PM |
| 15 | Waxing Crescent | 22% | 11:18 AM | 10:26 PM |
| 16 | Waxing Crescent | 30% | 12:09 PM | 11:30 PM |
| 17 | Waxing Crescent | 39% | 12:56 PM | — |
| 18 | First Quarter | 49% | 1:47 PM | 12:11 AM |
| 19 | First Quarter | 58% | 2:30 PM | 12:54 AM |
| 20 | Waxing Gibbous | 67% | 3:34 PM | 1:42 AM |
| 21 | Waxing Gibbous | 76% | 4:14 PM | 2:33 AM |
| 22 | Waxing Gibbous | 83% | 4:31 PM | 3:36 AM |
| 23 | Waxing Gibbous | 90% | 5:30 PM | 4:25 AM |
| 24 | Waxing Gibbous | 95% | 5:45 PM | 5:32 AM |
| 25 | Waxing Gibbous | 99% | 6:25 PM | 6:21 AM |
| 26 | Full Moon | 100% | 6:47 PM | 7:29 AM |
| 27 | Full Moon | 99% | 7:36 PM | 8:19 AM |
| 28 | Waning Gibbous | 96% | 8:18 PM | 9:29 AM |
| 29 | Waning Gibbous | 90% | 8:40 PM | 10:21 AM |
| 30 | Waning Gibbous | 82% | 9:40 PM | 11:34 AM |
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Frequently asked questions
When is the full moon in September 2026 in Key West, Florida, United States?
The full moon peaks on Saturday, September 26, 2026, 5:33 PM (local time).
When is the new moon in September 2026?
The new moon falls on Thursday, September 10, 2026, 8:18 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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