Ulaanbaatar, Mongolia — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for Ulaanbaatar, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:15 am	↑ (279°)	2:29 pm	↑ (76°)	9:24 pm	(52.7°)	226,546	83.4%
2	-		4:38 am	↑ (290°)	2:50 pm	↑ (66°)	10:18 pm	(59.2°)	223,870	91.5%
3	-		6:06 am	↑ (299°)	3:16 pm	↑ (57°)	11:17 pm	(64.6°)	222,224	97.1%
4	-		7:37 am	↑ (308°)	3:52 pm	↑ (50°)	Moon does not pass the meridian on this day.
5	-		9:04 am	↑ (313°)	4:43 pm	↑ (46°)	12:21 am	(68.4°)	221,837	99.7%
6	-		10:17 am	↑ (315°)	5:50 pm	↑ (46°)	1:29 am	(70.0°)	222,795	98.9%
7	-		11:12 am	↑ (312°)	7:10 pm	↑ (50°)	2:36 am	(69.2°)	225,005	95.0%
8	-		11:51 am	↑ (306°)	8:33 pm	↑ (57°)	3:38 am	(66.3°)	228,213	88.4%
9	-		12:18 pm	↑ (298°)	9:55 pm	↑ (65°)	4:35 am	(61.9°)	232,057	79.8%
10	-		12:39 pm	↑ (290°)	11:12 pm	↑ (74°)	5:26 am	(56.4°)	236,153	70.1%
11	-		12:56 pm	↑ (281°)	-		6:12 am	(50.4°)	240,169	59.7%
12	12:24 am	↑ (83°)	1:10 pm	↑ (272°)	-		6:55 am	(44.3°)	243,822	49.3%
13	1:34 am	↑ (93°)	1:24 pm	↑ (263°)	-		7:35 am	(38.2°)	246,920	39.2%
14	2:42 am	↑ (102°)	1:38 pm	↑ (255°)	-		8:16 am	(32.4°)	249,349	29.8%
15	3:49 am	↑ (110°)	1:54 pm	↑ (247°)	-		8:57 am	(27.0°)	251,069	21.3%
16	4:58 am	↑ (118°)	2:13 pm	↑ (239°)	-		9:40 am	(22.2°)	252,091	13.9%
17	6:07 am	↑ (125°)	2:36 pm	↑ (233°)	-		10:25 am	(18.2°)	252,471	8.0%
18	7:14 am	↑ (130°)	3:07 pm	↑ (228°)	-		11:13 am	(15.2°)	252,287	3.6%
19	8:18 am	↑ (134°)	3:47 pm	↑ (225°)	-		12:04 pm	(13.5°)	251,624	0.9%
20	9:15 am	↑ (135°)	4:38 pm	↑ (225°)	-		12:56 pm	(13.1°)	250,560	0.2%
21	10:01 am	↑ (133°)	5:39 pm	↑ (228°)	-		1:48 pm	(14.1°)	249,157	1.4%
22	10:37 am	↑ (129°)	6:48 pm	↑ (232°)	-		2:39 pm	(16.6°)	247,449	4.7%
23	11:05 am	↑ (124°)	8:01 pm	↑ (239°)	-		3:28 pm	(20.3°)	245,456	9.8%
24	11:27 am	↑ (116°)	9:14 pm	↑ (247°)	-		4:15 pm	(25.1°)	243,178	16.8%
25	11:45 am	↑ (108°)	10:28 pm	↑ (256°)	-		5:01 pm	(30.8°)	240,630	25.4%
26	12:01 pm	↑ (99°)	11:42 pm	↑ (266°)	-		5:45 pm	(37.0°)	237,834	35.3%
27	12:17 pm	↑ (89°)	-		-		6:29 pm	(43.6°)	234,874	46.2%
28	-		12:58 am	↑ (276°)	12:33 pm	↑ (80°)	7:16 pm	(50.2°)	231,867	57.5%
29	-		2:16 am	↑ (286°)	12:51 pm	↑ (70°)	8:05 pm	(56.6°)	229,021	68.8%
30	-		3:39 am	↑ (295°)	1:13 pm	↑ (61°)	9:00 pm	(62.3°)	226,563	79.4%
31	-		5:05 am	↑ (304°)	1:43 pm	↑ (53°)	10:00 pm	(66.8°)	224,789	88.4%
* All times are local time for Ulaanbaatar. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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