San Ramon, California, USA — Moonrise, Moonset, and Moon Phases, December 2025

Moonrise, Moonset, and Phase Calendar for San Ramon, December 2025

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2025	Moonrise/Moonset						Meridian Passing
Dec	Moonrise		Moonset		Moonrise		Time		Distance (mi)	Illumination
1	-		3:08 am	↑ (283°)	2:16 pm	↑ (73°)	9:13 pm	(67.2°)	224,743	88.8%
2	-		4:23 am	↑ (292°)	2:50 pm	↑ (65°)	10:10 pm	(73.1°)	222,689	95.4%
3	-		5:43 am	↑ (299°)	3:32 pm	↑ (59°)	11:13 pm	(77.5°)	221,824	99.1%
4	-		7:03 am	↑ (304°)	4:25 pm	↑ (55°)	Moon does not pass the meridian on this day.
5	-		8:18 am	↑ (307°)	5:29 pm	↑ (53°)	12:20 am	(80.0°)	222,291	99.6%
6	-		9:22 am	↑ (306°)	6:41 pm	↑ (55°)	1:27 am	(80.1°)	224,068	96.8%
7	-		10:14 am	↑ (302°)	7:56 pm	↑ (60°)	2:32 am	(77.9°)	226,948	91.1%
8	-		10:54 am	↑ (296°)	9:10 pm	↑ (66°)	3:31 am	(73.9°)	230,610	83.1%
9	-		11:26 am	↑ (289°)	10:19 pm	↑ (74°)	4:24 am	(68.8°)	234,653	73.7%
10	-		11:52 am	↑ (282°)	11:23 pm	↑ (82°)	5:11 am	(62.9°)	238,738	63.5%
11	-		12:16 pm	↑ (274°)	-		5:55 am	(56.8°)	242,546	53.0%
12	12:25 am	↑ (89°)	12:38 pm	↑ (267°)	-		6:36 am	(50.7°)	245,866	42.8%
13	1:25 am	↑ (97°)	1:00 pm	↑ (260°)	-		7:17 am	(44.7°)	248,545	33.1%
14	2:24 am	↑ (104°)	1:23 pm	↑ (253°)	-		7:57 am	(39.1°)	250,526	24.2%
15	3:24 am	↑ (111°)	1:48 pm	↑ (246°)	-		8:40 am	(34.1°)	251,796	16.5%
16	4:24 am	↑ (117°)	2:18 pm	↑ (241°)	-		9:24 am	(29.7°)	252,402	10.0%
17	5:25 am	↑ (122°)	2:52 pm	↑ (237°)	-		10:11 am	(26.4°)	252,414	5.0%
18	6:25 am	↑ (125°)	3:34 pm	↑ (234°)	-		11:01 am	(24.1°)	251,915	1.7%
19	7:21 am	↑ (127°)	4:23 pm	↑ (233°)	-		11:52 am	(23.2°)	250,990	0.2%
20	8:13 am	↑ (126°)	5:19 pm	↑ (234°)	-		12:45 pm	(23.7°)	249,705	0.7%
21	8:57 am	↑ (124°)	6:20 pm	↑ (237°)	-		1:36 pm	(25.7°)	248,106	3.2%
22	9:35 am	↑ (120°)	7:24 pm	↑ (242°)	-		2:26 pm	(29.0°)	246,214	7.7%
23	10:07 am	↑ (114°)	8:29 pm	↑ (248°)	-		3:14 pm	(33.5°)	244,040	14.1%
24	10:35 am	↑ (108°)	9:33 pm	↑ (255°)	-		4:00 pm	(38.9°)	241,588	22.1%
25	11:00 am	↑ (100°)	10:38 pm	↑ (263°)	-		4:44 pm	(44.9°)	238,878	31.6%
26	11:24 am	↑ (92°)	11:44 pm	↑ (272°)	-		5:29 pm	(51.4°)	235,964	42.1%
27	11:48 am	↑ (84°)	-		-		6:14 pm	(58.1°)	232,956	53.4%
28	-		12:51 am	↑ (280°)	12:15 pm	↑ (76°)	7:02 pm	(64.6°)	230,025	64.8%
29	-		2:02 am	↑ (288°)	12:45 pm	↑ (68°)	7:55 pm	(70.7°)	227,396	75.7%
30	-		3:17 am	↑ (296°)	1:21 pm	↑ (61°)	8:53 pm	(75.7°)	225,341	85.3%
31	-		4:35 am	↑ (302°)	2:07 pm	↑ (56°)	9:56 pm	(79.1°)	224,135	93.0%
* All times are local time for San Ramon. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

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