Groton, Connecticut, USA — Moonrise, Moonset, and Moon Phases, December 2025

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

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		2:42 am	↑ (283°)	1:47 pm	↑ (73°)	8:46 pm	(62.7°)	225,109	87.7%
2	-		4:01 am	↑ (292°)	2:17 pm	↑ (65°)	9:42 pm	(68.7°)	222,908	94.6%
3	-		5:23 am	↑ (300°)	2:54 pm	↑ (58°)	10:44 pm	(73.4°)	221,866	98.8%
4	-		6:46 am	↑ (306°)	3:43 pm	↑ (53°)	11:51 pm	(76.1°)	222,146	99.7%
5	-		8:04 am	↑ (309°)	4:44 pm	↑ (51°)	Moon does not pass the meridian on this day.
6	-		9:09 am	↑ (308°)	5:57 pm	↑ (53°)	12:58 am	(76.6°)	223,750	97.3%
7	-		10:00 am	↑ (305°)	7:14 pm	↑ (57°)	2:03 am	(74.7°)	226,495	92.0%
8	-		10:39 am	↑ (299°)	8:31 pm	↑ (64°)	3:03 am	(70.9°)	230,072	84.3%
9	-		11:09 am	↑ (291°)	9:43 pm	↑ (72°)	3:57 am	(65.9°)	234,082	75.1%
10	-		11:34 am	↑ (284°)	10:52 pm	↑ (80°)	4:45 am	(60.2°)	238,182	64.9%
11	-		11:55 am	↑ (276°)	11:56 pm	↑ (88°)	5:29 am	(54.0°)	242,043	54.5%
12	-		12:15 pm	↑ (268°)	-		6:11 am	(47.9°)	245,442	44.2%
13	12:59 am	↑ (96°)	12:34 pm	↑ (260°)	-		6:51 am	(41.9°)	248,215	34.4%
14	2:01 am	↑ (104°)	12:54 pm	↑ (253°)	-		7:32 am	(36.3°)	250,294	25.4%
15	3:03 am	↑ (111°)	1:17 pm	↑ (246°)	-		8:14 am	(31.1°)	251,661	17.5%
16	4:06 am	↑ (118°)	1:43 pm	↑ (240°)	-		8:58 am	(26.7°)	252,355	10.8%
17	5:09 am	↑ (123°)	2:15 pm	↑ (235°)	-		9:45 am	(23.2°)	252,445	5.6%
18	6:11 am	↑ (127°)	2:54 pm	↑ (232°)	-		10:34 am	(20.8°)	252,012	2.0%
19	7:09 am	↑ (129°)	3:41 pm	↑ (231°)	-		11:25 am	(19.7°)	251,141	0.3%
20	8:01 am	↑ (129°)	4:37 pm	↑ (232°)	-		12:18 pm	(20.0°)	249,902	0.6%
21	8:45 am	↑ (127°)	5:39 pm	↑ (235°)	-		1:10 pm	(21.8°)	248,345	2.8%
22	9:22 am	↑ (122°)	6:45 pm	↑ (240°)	-		2:00 pm	(24.9°)	246,493	7.0%
23	9:52 am	↑ (117°)	7:52 pm	↑ (246°)	-		2:48 pm	(29.2°)	244,359	13.1%
24	10:18 am	↑ (110°)	8:59 pm	↑ (254°)	-		3:34 pm	(34.5°)	241,944	20.9%
25	10:41 am	↑ (102°)	10:07 pm	↑ (262°)	-		4:19 pm	(40.4°)	239,268	30.2%
26	11:02 am	↑ (94°)	11:15 pm	↑ (271°)	-		5:03 pm	(46.9°)	236,376	40.6%
27	11:24 am	↑ (85°)	-		-		5:48 pm	(53.5°)	233,373	51.8%
28	-		12:25 am	↑ (279°)	11:47 am	↑ (76°)	6:36 pm	(60.1°)	230,418	63.2%
29	-		1:39 am	↑ (288°)	12:13 pm	↑ (68°)	7:28 pm	(66.3°)	227,733	74.2%
30	-		2:57 am	↑ (296°)	12:46 pm	↑ (61°)	8:25 pm	(71.4°)	225,580	84.1%
31	-		4:17 am	↑ (303°)	1:27 pm	↑ (55°)	9:27 pm	(75.1°)	224,242	92.1%
* All times are local time for Groton. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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