Moon · May 2026

Moon calendar for Westminster, Colorado, United States: May 2026

Daily moon phases, illumination, moonrise and moonset in Westminster, Colorado, United States for May 2026. Full moon: May 1, 2026, May 31, 2026. All times are shown in the local time of Westminster, Colorado, United States.

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Full moonFriday, May 1, 2026, 11:27 AM

Full moonSunday, May 31, 2026, 2:55 AM

New moonSaturday, May 16, 2026, 1:30 PM

Day	Phase	Illumination	Moonrise	Moonset
1	Full Moon	100%	8:13 PM	6:02 AM
2	Waning Gibbous	99%	9:22 PM	6:24 AM
3	Waning Gibbous	96%	10:14 PM	7:14 AM
4	Waning Gibbous	91%	11:09 PM	7:45 AM
5	Waning Gibbous	85%	11:49 PM	8:28 AM
6	Waning Gibbous	78%	—	9:36 AM
7	Waning Gibbous	70%	12:27 AM	10:26 AM
8	Last Quarter	60%	1:20 AM	11:37 AM
9	Last Quarter	50%	1:40 AM	12:30 PM
10	Last Quarter	40%	2:05 AM	1:43 PM
11	Waning Crescent	30%	2:27 AM	2:47 PM
12	Waning Crescent	20%	2:51 AM	4:05 PM
13	Waning Crescent	12%	3:31 AM	5:26 PM
14	Waning Crescent	6%	3:42 AM	6:23 PM
15	Waning Crescent	2%	4:18 AM	7:42 PM
16	New Moon	0%	4:35 AM	9:10 PM
17	Waxing Crescent	1%	5:35 AM	10:20 PM
18	Waxing Crescent	5%	6:21 AM	11:34 PM
19	Waxing Crescent	12%	7:34 AM	—
20	Waxing Crescent	20%	8:33 AM	12:21 AM
21	Waxing Crescent	30%	10:05 AM	1:13 AM
22	First Quarter	41%	11:30 AM	1:38 AM
23	First Quarter	52%	12:26 PM	2:11 AM
24	Waxing Gibbous	63%	1:40 PM	2:24 AM
25	Waxing Gibbous	73%	2:35 PM	2:44 AM
26	Waxing Gibbous	82%	3:48 PM	3:27 AM
27	Waxing Gibbous	89%	4:48 PM	3:36 AM
28	Waxing Gibbous	94%	5:57 PM	4:05 AM
29	Waxing Gibbous	98%	7:00 PM	4:24 AM
30	Full Moon	100%	8:00 PM	5:11 AM
31	Full Moon	100%	8:52 PM	5:41 AM

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Frequently asked questions

When is the full moon in May 2026 in Westminster, Colorado, United States?

The full moon peaks on Friday, May 1, 2026, 11:27 AM; Sunday, May 31, 2026, 2:55 AM (local time).

When is the new moon in May 2026?

The new moon falls on Saturday, May 16, 2026, 1:30 PM (local time) — the darkest nights of the month, best for stargazing.

Data: Meeus astronomical algorithms. How we calculate this

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