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Boulder, Colorado, USA — Moonrise, Moonset, and Moon Phases, December 2026

Moon: 16.9%
Waxing Crescent
Current Time: Nov 13, 2026 at 9:03:06 am
Moon Direction: ↑ 110° East
Moon Altitude: -19.4°
Moon Distance: 252,042 mi
Next Full Moon: Nov 24, 2026, 7:53 am
Next New Moon: Dec 8, 2026, 5:51 pm
Next Moonrise: Today, 10:56 am

Moonrise, Moonset, and Phase Calendar for Boulder, December 2026

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2026 Moonrise/Moonset Meridian Passing
Dec Moonrise Moonset Moonrise Time Distance (mi) Illumination
1 - 12:37 pm ↑ (274°) - 6:14 am (54.6°) 235,657 46.9%
2 12:47 am ↑ (90°) 12:59 pm ↑ (266°) - 6:58 am (48.2°) 238,790 36.1%
3 1:52 am ↑ (98°) 1:22 pm ↑ (259°) - 7:42 am (42.0°) 241,690 26.2%
4 2:57 am ↑ (106°) 1:46 pm ↑ (251°) - 8:26 am (36.2°) 244,281 17.6%
5 4:02 am ↑ (113°) 2:13 pm ↑ (245°) - 9:11 am (31.2°) 246,531 10.5%
6 5:06 am ↑ (119°) 2:43 pm ↑ (239°) - 9:58 am (27.0°) 248,435 5.2%
7 6:10 am ↑ (123°) 3:20 pm ↑ (235°) - 10:47 am (23.9°) 249,997 1.7%
8 7:10 am ↑ (126°) 4:04 pm ↑ (233°) - 11:38 am (22.1°) 251,213 0.2%
9 8:05 am ↑ (127°) 4:54 pm ↑ (233°) - 12:29 pm (21.6°) 252,060 0.7%
10 8:53 am ↑ (126°) 5:50 pm ↑ (234°) - 1:20 pm (22.5°) 252,494 3.0%
11 9:33 am ↑ (124°) 6:51 pm ↑ (238°) - 2:10 pm (24.7°) 252,449 7.2%
12 10:07 am ↑ (119°) 7:52 pm ↑ (243°) - 2:56 pm (28.1°) 251,854 12.9%
13 10:35 am ↑ (114°) 8:54 pm ↑ (249°) - 3:41 pm (32.3°) 250,641 20.1%
14 11:00 am ↑ (107°) 9:56 pm ↑ (256°) - 4:24 pm (37.3°) 248,760 28.5%
15 11:22 am ↑ (100°) 10:58 pm ↑ (263°) - 5:05 pm (42.9°) 246,204 37.9%
16 11:44 am ↑ (93°) - - 5:47 pm (48.9°) 243,017 48.1%
17 - 12:00 am ↑ (271°) 12:06 pm ↑ (85°) 6:30 pm (55.0°) 239,317 58.6%
18 - 1:05 am ↑ (279°) 12:29 pm ↑ (77°) 7:15 pm (61.2°) 235,300 69.1%
19 - 2:14 am ↑ (287°) 12:56 pm ↑ (69°) 8:05 pm (67.0°) 231,242 79.1%
20 - 3:27 am ↑ (295°) 1:29 pm ↑ (62°) 9:00 pm (72.0°) 227,486 87.9%
21 - 4:44 am ↑ (301°) 2:11 pm ↑ (57°) 10:02 pm (75.6°) 224,411 94.7%
22 - 6:01 am ↑ (306°) 3:05 pm ↑ (53°) 11:08 pm (77.3°) 222,370 98.9%
23 - 7:13 am ↑ (307°) 4:12 pm ↑ (53°) Moon does not pass the meridian on this day.
24 - 8:14 am ↑ (305°) 5:29 pm ↑ (56°) 12:16 am (76.7°) 221,614 99.8%
25 - 9:03 am ↑ (300°) 6:50 pm ↑ (62°) 1:22 am (73.9°) 222,227 97.4%
26 - 9:41 am ↑ (294°) 8:09 pm ↑ (70°) 2:22 am (69.2°) 224,105 92.0%
27 - 10:12 am ↑ (286°) 9:24 pm ↑ (78°) 3:18 am (63.3°) 226,991 84.0%
28 - 10:39 am ↑ (277°) 10:35 pm ↑ (87°) 4:08 am (56.8°) 230,543 74.4%
29 - 11:03 am ↑ (269°) 11:43 pm ↑ (95°) 4:55 am (50.2°) 234,406 63.8%
30 - 11:26 am ↑ (261°) - 5:40 am (43.8°) 238,260 52.9%
31 12:49 am ↑ (103°) 11:50 am ↑ (253°) - 6:24 am (37.8°) 241,854 42.2%
* All times are local time for Boulder. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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