SkyAlmanac

Moon · August 2025

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

Daily moon phases, illumination, moonrise and moonset in Belfast, Northern Ireland, United Kingdom for August 2025. Full moon: August 9, 2025. All times are shown in the local time of Belfast, Northern Ireland, United Kingdom.

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Full moonSaturday, August 9, 2025, 9:33 AM
New moonSaturday, August 23, 2025, 4:32 AM
Day Phase Illumination Moonrise Moonset
1 First Quarter 50% 2:25 PM 11:47 PM
2 First Quarter 59% 3:46 PM —
3 Waxing Gibbous 68% 5:01 PM 12:09 AM
4 Waxing Gibbous 77% 6:09 PM 12:28 AM
5 Waxing Gibbous 84% 7:10 PM 1:18 AM
6 Waxing Gibbous 91% 7:48 PM 2:04 AM
7 Waxing Gibbous 96% 8:19 PM 3:19 AM
8 Waxing Gibbous 99% 8:33 PM 4:25 AM
9 Full Moon 100% 8:59 PM 5:51 AM
10 Waning Gibbous 99% 9:22 PM 7:30 AM
11 Waning Gibbous 95% 9:30 PM 8:36 AM
12 Waning Gibbous 89% 9:35 PM 10:17 AM
13 Waning Gibbous 80% 9:38 PM 11:39 AM
14 Waning Gibbous 70% 9:45 PM 1:32 PM
15 Last Quarter 59% 9:57 PM 3:09 PM
16 Last Quarter 47% 10:13 PM 4:44 PM
17 Waning Crescent 36% 10:35 PM 6:32 PM
18 Waning Crescent 25% 11:36 PM 7:50 PM
19 Waning Crescent 16% — 8:15 PM
20 Waning Crescent 8% 1:05 AM 8:50 PM
21 Waning Crescent 3% 2:32 AM 9:13 PM
22 New Moon 1% 4:15 AM 9:26 PM
23 New Moon 0% 5:46 AM 9:31 PM
24 Waxing Crescent 2% 7:22 AM 9:34 PM
25 Waxing Crescent 6% 8:25 AM 9:36 PM
26 Waxing Crescent 11% 9:45 AM 9:39 PM
27 Waxing Crescent 18% 11:07 AM 9:45 PM
28 Waxing Crescent 25% 12:17 PM 9:55 PM
29 Waxing Crescent 34% 1:36 PM 10:14 PM
30 First Quarter 43% 2:38 PM 10:29 PM
31 First Quarter 52% 3:56 PM 11:13 PM

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Frequently asked questions

When is the full moon in August 2025 in Belfast, Northern Ireland, United Kingdom?

The full moon peaks on Saturday, August 9, 2025, 9:33 AM (local time).

When is the new moon in August 2025?

The new moon falls on Saturday, August 23, 2025, 4:32 AM (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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