Moon · September 2025
Moon calendar for Stamford, Connecticut, United States: September 2025
Daily moon phases, illumination, moonrise and moonset in Stamford, Connecticut, United States for September 2025. Full moon: September 7, 2025. All times are shown in the local time of Stamford, Connecticut, United States.
Full moonSunday, September 7, 2025, 3:53 PM
New moonSunday, September 21, 2025, 12:49 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 64% | 3:33 PM | — |
| 2 | Waxing Gibbous | 73% | 4:18 PM | 1:42 AM |
| 3 | Waxing Gibbous | 81% | 4:56 PM | 1:45 AM |
| 4 | Waxing Gibbous | 89% | 5:37 PM | 2:44 AM |
| 5 | Waxing Gibbous | 94% | 6:10 PM | 4:04 AM |
| 6 | Waxing Gibbous | 98% | 6:26 PM | 5:25 AM |
| 7 | Full Moon | 100% | 6:50 PM | 6:22 AM |
| 8 | Full Moon | 99% | 7:31 PM | 7:36 AM |
| 9 | Waning Gibbous | 96% | 7:41 PM | 9:26 AM |
| 10 | Waning Gibbous | 89% | 8:13 PM | 10:09 AM |
| 11 | Waning Gibbous | 81% | 8:28 PM | 11:33 AM |
| 12 | Waning Gibbous | 71% | 9:26 PM | 12:39 PM |
| 13 | Last Quarter | 60% | 10:06 PM | 2:09 PM |
| 14 | Last Quarter | 48% | 11:06 PM | 3:29 PM |
| 15 | Waning Crescent | 37% | — | 4:19 PM |
| 16 | Waning Crescent | 26% | 12:13 AM | 5:11 PM |
| 17 | Waning Crescent | 17% | 1:34 AM | 5:39 PM |
| 18 | Waning Crescent | 10% | 2:31 AM | 6:11 PM |
| 19 | Waning Crescent | 4% | 3:53 AM | 6:24 PM |
| 20 | Waning Crescent | 1% | 5:13 AM | 6:40 PM |
| 21 | New Moon | 0% | 6:15 AM | 7:22 PM |
| 22 | New Moon | 1% | 7:25 AM | 7:33 PM |
| 23 | Waxing Crescent | 4% | 8:19 AM | 7:47 PM |
| 24 | Waxing Crescent | 8% | 9:28 AM | 8:16 PM |
| 25 | Waxing Crescent | 14% | 10:20 AM | 8:29 PM |
| 26 | Waxing Crescent | 21% | 11:30 AM | 9:23 PM |
| 27 | Waxing Crescent | 29% | 12:20 PM | 9:47 PM |
| 28 | Waxing Crescent | 38% | 1:28 PM | 10:30 PM |
| 29 | First Quarter | 48% | 2:14 PM | 11:38 PM |
| 30 | First Quarter | 58% | 2:47 PM | — |
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Frequently asked questions
When is the full moon in September 2025 in Stamford, Connecticut, United States?
The full moon peaks on Sunday, September 7, 2025, 3:53 PM (local time).
When is the new moon in September 2025?
The new moon falls on Sunday, September 21, 2025, 12:49 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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