Moon · September 2025
Moon calendar for Cardiff, Wales, United Kingdom: September 2025
Daily moon phases, illumination, moonrise and moonset in Cardiff, Wales, United Kingdom for September 2025. Full moon: September 7, 2025. All times are shown in the local time of Cardiff, Wales, United Kingdom.
Full moonSunday, September 7, 2025, 8:53 PM
New moonSunday, September 21, 2025, 5:49 PM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waxing Gibbous | 62% | 4:21 PM | — |
| 2 | Waxing Gibbous | 71% | 5:25 PM | 12:06 AM |
| 3 | Waxing Gibbous | 80% | 5:50 PM | 1:11 AM |
| 4 | Waxing Gibbous | 87% | 6:20 PM | 2:17 AM |
| 5 | Waxing Gibbous | 93% | 6:33 PM | 3:38 AM |
| 6 | Waxing Gibbous | 98% | 7:03 PM | 4:50 AM |
| 7 | Full Moon | 100% | 7:26 PM | 6:18 AM |
| 8 | Full Moon | 99% | 7:34 PM | 7:39 AM |
| 9 | Waning Gibbous | 96% | 7:40 PM | 9:12 AM |
| 10 | Waning Gibbous | 91% | 7:52 PM | 10:27 AM |
| 11 | Waning Gibbous | 83% | 8:14 PM | 12:08 PM |
| 12 | Waning Gibbous | 73% | 8:23 PM | 2:06 PM |
| 13 | Waning Gibbous | 62% | 9:05 PM | 3:27 PM |
| 14 | Last Quarter | 51% | 9:51 PM | 4:34 PM |
| 15 | Waning Crescent | 39% | 11:07 PM | 5:52 PM |
| 16 | Waning Crescent | 28% | — | 6:18 PM |
| 17 | Waning Crescent | 19% | 12:23 AM | 6:34 PM |
| 18 | Waning Crescent | 11% | 2:02 AM | 6:54 PM |
| 19 | Waning Crescent | 5% | 3:33 AM | 7:19 PM |
| 20 | Waning Crescent | 2% | 4:40 AM | 7:30 PM |
| 21 | New Moon | 0% | 6:11 AM | 7:34 PM |
| 22 | New Moon | 1% | 7:30 AM | 7:38 PM |
| 23 | Waxing Crescent | 3% | 8:25 AM | 7:47 PM |
| 24 | Waxing Crescent | 7% | 9:42 AM | 8:04 PM |
| 25 | Waxing Crescent | 13% | 10:48 AM | 8:20 PM |
| 26 | Waxing Crescent | 19% | 12:07 PM | 8:35 PM |
| 27 | Waxing Crescent | 27% | 1:21 PM | 9:24 PM |
| 28 | Waxing Crescent | 36% | 2:13 PM | 9:57 PM |
| 29 | First Quarter | 46% | 3:16 PM | 10:48 PM |
| 30 | First Quarter | 55% | 3:49 PM | — |
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Frequently asked questions
When is the full moon in September 2025 in Cardiff, Wales, United Kingdom?
The full moon peaks on Sunday, September 7, 2025, 8:53 PM (local time).
When is the new moon in September 2025?
The new moon falls on Sunday, September 21, 2025, 5:49 PM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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