San Diego, CA: December

31 December 2025: December 2025 averaged 60.1°F in San Diego, CA, the warmest December since 2017, 19th warmest of 152.

December 2025

Mean temperature: 60.1°F; Warmest since 2017; 19th warmest of 152
Precipitation: 1.21 in; Driest since 2024; 84th driest of 172

A normal December in San Diego, CA (1991 to 2020): a mean temperature of 57.6°F, between 55.5°F and 59.4°F in eight years of ten and 0.87 in of precipitation, between 0.31 in and 4.05 in in eight years of ten.

The mean temperature of every December in San Diego, CA since 1874: 60.1°F in 2025; the highest is 63.2°F, in 1977.

Normal range, 55.5 to 59.4°F

Every year, ranked, as a table

Every December in San Diego, CA from 1850 to 2025, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2025	60.1	19	68.9	19	51.3	22	1.21	88	0
2024	57.7	57	66.5	48	49	60	0.01	166	0
2023	59.2	26	68.4	25	50.1	41	0.79	110	0
2022	56.3	95	64.9	87	47.7	95	1.58	72	0
2021	55.6	109	62.3	135	49	60	2.58	43	0
2020	57.9	49	69	17	46.8	120	0.60	123	0
2019	58.7	33	66.8	41	50.6	31	4.03	18	0
2018	59.5	23	67.1	37	51.9	11	3.02	36	0
2017	60.2	17	70.8	7	49.6	50	0.07	159	0
2016	58.9	30	66.3	57	51.5	16	4.22	16	0
2015	58.1	42	66.5	48	49.7	49	0.88	103	0
2014	60.5	10	67.3	33	53.7	3	4.50	12	0
2013	59.4	24	68.5	22	50.2	39	0.46	132	0
2012	57.4	66	62.8	126	51.9	11	2.19	57	0
2011	55.5	112	64.2	98	46.9	115	0.86	106	0
2010	58.8	31	65.6	68	51.9	11	5.00	9	0
2009	56.7	84	63.4	118	49.9	46	2.28	49	0
2008	56.6	87	62.9	124	50.3	36	3.38	30	0
2007	54.2	135	61.6	144	46.8	120	0.80	108	0
2006	56.4	90	65.5	73	47.4	105	0.71	114	0
2005	58.4	38	65.5	73	51.4	19	0.25	148	0
2004	57.7	57	65.1	83	50.4	34	4.01	20	0
2003	56.9	81	64.6	93	49.2	57	0.61	121	0
2002	56.8	83	63.7	113	49.8	47	1.98	60	0
2001	55.5	112	63.3	119	47.6	100	0.46	132	0
2000	58.1	42	66.9	40	49.3	52	0.01	166	0
1999	57.8	51	67.6	31	47.9	89	0.32	141	0
1998	55.4	117	63.8	109	46.9	115	0.66	118	0
1997	57.4	66	66.4	53	48.4	79	1.35	85	0
1996	57.8	51	65.1	83	50.5	32	0.63	120	0
1995	58.3	39	65.5	73	51	27	0.88	103	0
1994	55.8	105	63.9	103	47.7	95	0.80	108	0
1993	57	80	66.8	41	47.2	108	0.78	111	0
1992	55.3	120	63.8	109	46.7	123	2.56	44	0
1991	57.3	72	65.4	80	49.1	58	1.70	65	0
1990	55.6	109	65.7	64	45.5	141	0.59	124	0
1989	58.7	33	69.9	10	47.5	103	1.01	100	0
1988	56	100	64.5	94	47.5	103	2.23	51	0
1987	53.9	142	62	138	45.8	138	2.73	41	0
1986	57.6	59	66.6	47	48.5	77	0.95	101	0
1985	58	47	68.2	27	47.8	93	1.06	97	0
1984	56.7	84	62.9	124	50.4	34	4.55	11	0
1983	60.6	7	67.2	34	54	2	1.53	74	0
1982	57.4	66	65.7	64	49	60	1.43	79	0
1981	60.3	13	68.4	25	52.2	7	0.54	127	0
1980	60.8	4	70.6	8	51	27	0.31	143	0
1979	60.6	7	71.2	4	50	43	0.02	164	0
1978	55.2	121	63.9	103	46.5	127	2.19	57	0
1977	63.2	1	68.9	19	57.6	1	1.67	67	0
1976	60.6	7	71.3	3	50	43	1.06	97	0
1975	56.9	81	65.8	63	47.9	89	0.37	138	0
1974	56.3	95	65.7	64	46.9	115	2.20	54	0
1973	58.2	40	67	38	49.3	52	0.19	152	0
1972	57.5	61	66	62	49	60	1.61	70	0
1971	54.1	139	61.7	143	46.6	125	3.27	34	0
1970	55.4	117	61.8	142	49	60	2.22	52	0
1969	59.1	27	66.7	44	51.5	16	0.46	132	0
1968	54.9	128	64.2	98	45.6	140	0.61	121	0
1967	55.5	112	64.1	101	46.9	115	1.66	68	0
1966	57.2	74	65.7	64	48.7	72	3.22	35	0
1965	55.1	122	63.7	113	46.5	127	6.60	4	0
1964	55.6	109	62.8	126	48.4	79	1.17	92	0
1963	58.5	37	70.9	6	46.1	133	0.10	157	0
1962	56.4	90	64.9	87	47.9	89	0.22	149	0
1961	56.1	99	64.5	94	47.7	95	1.45	77	0
1960	56.3	95	66.7	44	45.9	136	0.22	149	0
1959	60.2	17	69.3	13	51.1	26	1.44	78	0
1958	61.9	2	72.5	1	51.3	22	0.06	160	0
1957	61.4	3	71.2	4	51.5	16	1.38	83	0
1956	59.9	20	71.4	2	48.3	82	0.18	153	0
1955	57.1	76	63.9	103	50.3	36	0.33	140	0
1954	58.1	42	68.2	27	48.1	87	0.55	125	0
1953	57.6	59	69	17	46.3	130	0.03	162	0
1952	56.4	90	65.5	73	47.3	107	2.20	54	0
1951	55.5	112	63.2	120	47.7	95	3.87	23	0
1950	59.7	21	69.2	14	50.3	36	0.05	161	0
1949	54.9	128	64.7	91	45	145	0.86	106	0
1948	53.6	149	62.7	128	44.6	149	2.38	48	0
1947	55.8	105	65.6	68	45.9	136	3.02	36	0
1946	57.1	76	65.2	81	49	60	1.18	91	0
1945	57.3	72	66.1	60	48.5	77	3.62	27	0
1944	58.2	40	69.4	12	47	111	1.53	74	0
1943	57.8	51	66.7	44	48.9	69	7.60	3	0
1942	57.5	61	67.2	34	47.8	93	0.69	116	0
1941	57.5	61	66.4	53	48.7	72	2.85	39	0
1940	60.8	4	69.9	10	51.6	15	6.09	6	0
1939	60.4	11	70.6	8	50.1	41	0.54	127	0
1938	59.6	22	67.8	30	51.4	19	4.25	15	0
1937	60.3	13	68.5	22	52	9	1.06	97	0
1936	58.1	42	66.2	59	50	43	4.45	14	0
1935	57.4	66	65.6	68	49.3	52	0.74	112	0
1934	59.1	27	66.5	48	51.7	14	3.38	30	0
1933	55.1	122	62.5	130	47.7	95	1.10	95	0
1932	54.2	135	62.1	137	46.4	129	2.40	47	0
1931	53.8	143	61.3	147	46.3	130	3.56	29	0
1930	57.1	76	67	38	47.2	108	0.00	170	0
1929	60.3	13	68.6	21	52	9	0.00	170	0
1928	55.9	104	64.8	90	47	111	2.42	46	1
1927	56	100	63.8	109	48.2	86	4.57	10	0
1926	55.1	122	62.4	134	47.9	89	3.89	21	0
1925	60.3	13	69.2	14	51.4	19	1.50	76	0
1924	54	141	61.9	140	46.2	132	1.34	86	0
1923	57.5	61	65.6	68	49.3	52	1.65	69	0
1922	58	47	64.7	91	51.2	24	1.21	88	0
1921	59.3	25	66.4	53	52.2	7	9.26	1	0
1920	54.8	130	62.6	129	47	111	0.54	127	0
1919	56.5	88	65.5	73	47.6	100	0.48	131	0
1918	54.8	130	63.9	103	45.7	139	1.68	66	0
1917	58.6	36	68.2	27	49	60	trace	169	0
1916	52.4	151	60.2	152	44.6	149	1.14	93	0
1915	55.5	112	63.7	113	47.4	105	2.60	42	0
1914	54.5	133	62	138	47.1	110	2.21	53	0
1913	55.4	117	62.5	130	48.3	82	0.72	113	0
1912	54.1	139	63.2	120	45	145	0.03	162	0
1911	53.5	150	61.9	140	45	145	1.39	81	0
1910	56.2	98	64.2	98	48.3	82	0.15	154	0
1909	53.7	148	60.9	148	46.6	125	3.76	24	0
1908	53.8	143	60.7	149	46.8	120	0.27	146	0
1907	57.8	51	65.5	73	50.2	39	0.43	135	0
1906	56.4	90	63.9	103	49	60	4.02	19	0
1905	56	100	64.4	96	47.6	100	0.38	137	0
1904	58.8	31	66.5	48	51.2	24	2.46	45	0
1903	57.9	49	66.8	41	48.9	69	0.35	139	0
1902	55.8	105	63	122	48.7	72	3.58	28	0
1901	57.8	51	67.2	34	48.3	82	0.02	164	0
1900	60.4	11	68.5	22	52.3	4	0.00	170	0
1899	58.7	33	66.5	48	50.9	30	0.65	119	0
1898	56.7	84	63.8	109	49.5	51	0.87	105	0
1897	55	126	63.9	103	46	134	0.32	141	0
1896	59	29	67.6	31	50.5	32	2.18	59	0
1895	55	126	65.1	83	44.8	148	0.27	146	0
1894	54.8	130	61.5	145	48.1	87	2.26	50	0
1893	57.5	61	66.3	57	48.6	75	1.91	62	0
1892	54.2	135	63	122	45.5	141	0.69	116	0
1891	52.2	152	61.5	145	42.9	152	1.29	87	0
1890	60.7	6	69.2	14	52.3	4	1.61	70	0
1889	57.4	66	62.5	130	52.3	4	7.71	2	0
1888	58.1	42	65.2	81	51	27	2.84	40	0
1887	54.5	133	62.2	136	46.7	123	1.14	93	0
1886	56.4	90	63.5	116	49.3	52	0.10	157	0
1885	57.4	66	66.1	60	48.6	75	0.71	114	0
1884	53.8	143	60.6	151	47	111	5.12	8	0
1883	57.2	74	65.6	68	48.9	69	1.82	63	0
1882	55.7	108	65.5	73	46	134	0.13	156	0
1881	55.1	122	65.1	83	45.2	143	0.30	145	0
1880	56	100	63.5	116	48.4	79	4.15	17	0
1879	53.8	143	60.7	149	46.9	115	6.32	5	0
1878	54.2	135	64.9	87	43.5	151	1.57	73	0
1877	56.5	88	64.1	101	49	60	3.89	21	0
1876	57.8	51	66.4	53	49.1	58	0.15	154	0
1875	57.1	76	64.4	96	49.8	47	0.41	136	0
1874	53.8	143	62.5	130	45.1	144	0.55	125	0
1873							5.46	7	31
1872							1.43	79	31
1871							1.39	81	31
1870							0.50	130	31
1865							0.94	102	31
1864							0.21	151	31
1863							0.01	166	31
1862							1.09	96	31
1861							2.91	38	31
1860							3.32	33	31
1859							2.20	54	31
1858							3.65	26	31
1857							1.38	83	31
1856							1.20	90	31
1855							0.31	143	31
1854							3.34	32	31
1853							1.77	64	31
1852							4.50	12	31
1851							3.74	25	31
1850							1.93	61	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1977	63.2
1958	61.9
1957	61.4
1980	60.8
1940	60.8
1890	60.7
1983	60.6
1979	60.6
1976	60.6
2014	60.5

Coldest
Year	Mean, °F
1891	52.2
1916	52.4
1911	53.5
1948	53.6
1909	53.7
1931	53.8
1908	53.8
1884	53.8
1879	53.8
1874	53.8

Wettest
Year	Precipitation, in
1921	9.26
1889	7.71
1943	7.60
1965	6.60
1879	6.32
1940	6.09
1873	5.46
1884	5.12
2010	5.00
1927	4.57

Driest
Year	Precipitation, in
1930	0.00
1929	0.00
1900	0.00
1917	trace
2024	0.01
2000	0.01
1863	0.01
1979	0.02
1901	0.02
1953	0.03
More years share the last value

The hottest, coldest and wettest days

Hottest day: 80°F; 10 December 2025, 9 December 2025
Coldest night: 42°F; 29 December 2025
Wettest day: 0.51 in; 24 December 2025

Every month, season and year

Months

Seasons

Years

San Diego, CA the day's answers

All-time records

Every answer in words

December 2025 brought 1.21 in of precipitation in San Diego, CA, the driest December since 2024, tied 84th driest of 172 (with 1922).
The hottest day of December 2025 in San Diego, CA: 80°F on Wednesday 10 December 2025 and Tuesday 9 December 2025.
The coldest night of December 2025 in San Diego, CA: a low of 42°F on Monday 29 December 2025.
The wettest day of December 2025 in San Diego, CA: 0.51 in on Wednesday 24 December 2025.