SkyAlmanac

Moon · September 2025

Moon calendar for Belfast, Northern Ireland, United Kingdom: September 2025

Daily moon phases, illumination, moonrise and moonset in Belfast, Northern Ireland, United Kingdom for September 2025. Full moon: September 7, 2025. All times are shown in the local time of Belfast, Northern Ireland, United Kingdom.

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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% 4:56 PM 11:53 PM
2 Waxing Gibbous 71% 5:45 PM —
3 Waxing Gibbous 80% 6:19 PM 12:54 AM
4 Waxing Gibbous 87% 6:37 PM 2:12 AM
5 Waxing Gibbous 93% 7:11 PM 3:37 AM
6 Waxing Gibbous 98% 7:28 PM 4:56 AM
7 Full Moon 100% 7:34 PM 6:22 AM
8 Full Moon 99% 7:38 PM 7:48 AM
9 Waning Gibbous 96% 7:43 PM 9:31 AM
10 Waning Gibbous 91% 7:52 PM 10:50 AM
11 Waning Gibbous 83% 8:06 PM 12:29 PM
12 Waning Gibbous 73% 8:17 PM 2:19 PM
13 Waning Gibbous 62% 8:31 PM 4:02 PM
14 Last Quarter 51% 9:28 PM 5:39 PM
15 Waning Crescent 39% 10:29 PM 6:18 PM
16 Waning Crescent 28% — 6:56 PM
17 Waning Crescent 19% 12:12 AM 7:23 PM
18 Waning Crescent 11% 1:51 AM 7:33 PM
19 Waning Crescent 5% 3:31 AM 7:36 PM
20 Waning Crescent 2% 4:46 AM 7:38 PM
21 New Moon 0% 6:16 AM 7:40 PM
22 New Moon 1% 7:36 AM 7:55 PM
23 Waxing Crescent 3% 8:37 AM 7:52 PM
24 Waxing Crescent 7% 10:05 AM 8:06 PM
25 Waxing Crescent 13% 11:26 AM 8:18 PM
26 Waxing Crescent 19% 12:25 PM 8:31 PM
27 Waxing Crescent 27% 1:44 PM 9:11 PM
28 Waxing Crescent 36% 2:41 PM 9:46 PM
29 First Quarter 46% 3:42 PM 10:34 PM
30 First Quarter 55% 4:18 PM 11:52 PM

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Frequently asked questions

When is the full moon in September 2025 in Belfast, Northern Ireland, 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

More for Belfast, Northern Ireland, United Kingdom

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