SkyAlmanac

Moon · December 2025

Moon calendar for Ames, Iowa, United States: December 2025

Daily moon phases, illumination, moonrise and moonset in Ames, Iowa, United States for December 2025. Full moon: December 4, 2025. All times are shown in the local time of Ames, Iowa, United States.

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Full moonThursday, December 4, 2025, 5:18 PM
New moonFriday, December 19, 2025, 8:59 PM
Day Phase Illumination Moonrise Moonset
1 Waxing Gibbous 87% 2:46 AM 2:18 AM
2 Waxing Gibbous 93% 2:23 PM 5:21 AM
3 Waxing Gibbous 98% 3:00 PM 6:26 AM
4 Full Moon 100% 3:43 PM 7:49 AM
5 Waning Gibbous 99% 4:31 PM 9:15 AM
6 Waning Gibbous 95% 5:49 PM 10:12 AM
7 Waning Gibbous 89% 7:19 PM 10:54 AM
8 Waning Gibbous 82% 8:23 PM 11:36 AM
9 Waning Gibbous 72% 9:40 PM 12:04 PM
10 Waning Gibbous 62% 10:44 PM 12:22 PM
11 Last Quarter 52% — 12:33 PM
12 Last Quarter 42% 12:03 AM 1:12 PM
13 Waning Crescent 32% 1:16 AM 1:31 PM
14 Waning Crescent 24% 2:33 AM 1:39 PM
15 Waning Crescent 16% 3:23 AM 2:09 PM
16 Waning Crescent 10% 4:18 AM 2:25 PM
17 Waning Crescent 5% 5:28 AM 3:11 PM
18 Waning Crescent 2% 6:19 AM 3:41 PM
19 New Moon 0% 7:25 AM 4:25 PM
20 New Moon 1% 8:11 AM 5:33 PM
21 Waxing Crescent 3% 8:41 AM 6:24 PM
22 Waxing Crescent 7% 9:34 AM 7:36 PM
23 Waxing Crescent 13% 9:59 AM 8:32 PM
24 Waxing Crescent 20% 10:24 AM 9:48 PM
25 Waxing Crescent 30% 10:38 AM 11:12 PM
26 First Quarter 40% 11:24 AM —
27 First Quarter 51% 11:37 AM 12:18 AM
28 Waxing Gibbous 63% 11:56 AM 1:34 AM
29 Waxing Gibbous 74% 12:23 PM 2:36 AM
30 Waxing Gibbous 83% 12:51 PM 4:13 AM
31 Waxing Gibbous 91% 1:38 PM 5:36 AM

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Frequently asked questions

When is the full moon in December 2025 in Ames, Iowa, United States?

The full moon peaks on Thursday, December 4, 2025, 5:18 PM (local time).

When is the new moon in December 2025?

The new moon falls on Friday, December 19, 2025, 8:59 PM (local time) — the darkest nights of the month, best for stargazing.

Data: Meeus astronomical algorithms. How we calculate this

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