San Diego, CA: January

31 January 2026: January 2026 averaged 59.6°F in San Diego, CA, the warmest January since 2018, 17th warmest of 152.

January 2026

Mean temperature: 59.6°F; Warmest since 2018; 17th warmest of 152
Precipitation: 3.10 in; Wettest since 2024; 37th wettest of 171

A normal January in San Diego, CA (1991 to 2020): a mean temperature of 58°F, between 55.5°F and 60.8°F in eight years of ten and 1.37 in of precipitation, between 0.16 in and 3.49 in in eight years of ten.

The mean temperature of every January in San Diego, CA since 1875: 59.6°F in 2026; the highest is 61.7°F, in 2003.

Normal range, 55.5 to 60.8°F

Every year, ranked, as a table

Every January in San Diego, CA from 1851 to 2026, 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
2026	59.6	17	70.1	5	49.2	49	3.10	37	0
2025	56.3	69	67.3	26	45.3	124	0.21	152	0
2024	56.1	76	64.6	66	47.6	76	3.65	21	0
2023	55.8	83	63.6	92	48	70	5.14	10	0
2022	56.9	51	66.9	30	46.9	92	0.16	157	0
2021	58	32	67.9	22	48.1	68	1.80	69	0
2020	58.6	22	67.9	22	49.3	46	0.48	129	0
2019	58.7	21	66.4	39	51.1	20	2.80	42	0
2018	61.5	2	69.8	7	53.1	4	1.78	70	0
2017	57.9	34	64.4	75	51.4	18	3.01	39	0
2016	58.5	23	65.5	51	51.6	16	3.21	34	0
2015	60.8	9	69.4	10	52.2	8	0.42	134	0
2014	61.3	3	70.5	3	52	9	0.01	168	0
2013	55.8	83	64.5	70	47.1	86	1.21	94	0
2012	58.2	25	67.4	25	49	53	0.40	137	0
2011	60.1	13	69	14	51.3	19	0.30	147	0
2010	58.2	25	66.5	36	50	33	3.38	28	0
2009	59.9	15	69.4	10	50.4	27	0.08	159	0
2008	54.4	118	61.1	132	47.7	74	3.34	30	0
2007	54	123	62.3	117	45.8	114	0.51	126	0
2006	57	48	65.2	57	48.8	58	0.36	139	0
2005	58.8	20	65.9	44	51.7	14	4.49	15	0
2004	56.8	57	63.8	88	49.9	34	0.34	144	0
2003	61.7	1	71.4	1	52	9	0.02	166	0
2002	55.6	89	63	104	48.3	64	0.32	145	0
2001	54.7	111	62.2	120	47.2	83	3.28	32	0
2000	58.2	25	65.8	46	50.6	26	0.17	156	0
1999	57.5	42	65.2	57	49.8	36	1.54	80	0
1998	58.2	25	64.1	81	52.3	7	2.68	48	0
1997	58	32	64.2	79	51.7	14	3.02	38	0
1996	57.6	40	65.4	54	49.8	36	1.52	81	0
1995	56.9	51	62.7	108	51.1	20	8.06	2	0
1994	57.8	35	68.4	17	47.3	81	0.70	114	0
1993	56.9	51	63.6	92	50.2	30	9.09	1	0
1992	57.4	43	68	21	46.7	98	1.81	68	0
1991	57.4	43	65.6	49	49.2	49	1.06	101	0
1990	56.6	64	66.2	42	47	88	2.52	49	0
1989	54.7	111	64.5	70	44.9	128	0.42	134	0
1988	56.7	61	65.7	48	47.6	76	0.89	106	0
1987	55.3	97	64.1	81	46.6	102	1.68	74	0
1986	60.9	8	70.3	4	51.6	16	0.75	112	0
1985	57	48	64.7	65	49.3	46	0.52	124	0
1984	61.2	5	69.6	9	52.8	5	0.46	131	0
1983	60.7	10	69.4	10	52	9	2.10	60	0
1982	56.5	66	63.9	85	49.2	49	2.71	46	0
1981	61.3	3	68.3	18	54.3	3	1.48	83	0
1980	61.1	6	67.3	26	54.9	1	5.58	9	0
1979	56.8	57	62.9	106	50.8	22	5.82	8	0
1978	61	7	67	28	54.9	1	5.95	7	0
1977	60.3	12	68.1	20	52.4	6	2.36	54	0
1976	58.9	19	69.9	6	47.8	72	trace	169	0
1975	56.1	76	65.9	44	46.3	104	0.49	128	0
1974	56.8	57	63.9	85	49.8	36	2.96	41	0
1973	55.5	91	63.9	85	47.2	83	1.68	74	0
1972	54.8	108	64.1	81	45.6	117	0.07	162	0
1971	54.3	121	61.8	125	46.7	98	0.30	147	0
1970	57	48	63.7	90	50.3	28	0.86	109	0
1969	58.1	29	64.4	75	51.8	12	4.78	13	0
1968	57.2	46	66.5	36	47.9	71	0.35	140	0
1967	55	105	64.5	70	45.5	121	2.20	56	0
1966	53.9	125	63.5	95	44.3	136	1.29	91	0
1965	56	80	65.8	46	46.1	110	0.40	137	0
1964	55.2	100	65.3	55	45.2	125	1.30	90	0
1963	55	105	63.8	88	46.3	104	0.11	158	0
1962	56.7	61	67	28	46.4	103	2.71	46	0
1961	60.7	10	71.1	2	50.3	28	1.21	94	0
1960	54.8	108	63.5	95	46.2	108	2.99	40	0
1959	59.7	16	68.6	16	50.8	22	0.08	159	0
1958	59.4	18	69.4	10	49.5	40	0.62	119	0
1957	56.4	68	63	104	49.9	34	4.80	12	0
1956	55.4	95	62.5	115	48.3	64	1.65	76	0
1955	53.9	125	62.3	117	45.5	121	3.59	22	0
1954	55	105	63.2	101	46.8	94	2.76	45	0
1953	60	14	69.8	7	50.1	32	0.58	122	0
1952	54.4	118	62.4	116	46.3	104	4.24	18	0
1951	55.6	89	64.5	70	46.8	94	1.60	78	0
1950	52	142	60.4	136	43.7	141	3.31	31	0
1949	47.8	152	56.1	152	39.5	152	3.56	25	0
1948	55.7	86	66.6	34	44.8	130	trace	169	0
1947	53.5	128	64.9	62	42.1	149	0.35	140	0
1946	56.1	76	66.6	34	45.6	117	0.89	106	0
1945	55.3	97	64.8	63	45.7	115	0.42	134	0
1944	56.3	69	66.7	33	46	111	1.22	93	0
1943	56.9	51	66.3	41	47.6	76	6.26	6	0
1942	57.7	37	68.3	18	47.1	86	0.21	152	0
1941	57.6	40	65.6	49	49.5	40	2.03	62	0
1940	58.1	29	65.5	51	50.7	24	2.15	58	0
1939	55.5	91	63.5	95	47.6	76	2.38	52	0
1938	58.5	23	67.5	24	49.4	44	0.89	106	0
1937	49.3	151	56.6	151	41.9	150	1.52	81	0
1936	56.5	66	64.5	70	48.6	62	0.75	112	0
1935	56	80	63.1	102	48.8	58	2.15	58	0
1934	56.1	76	65.3	55	46.9	92	0.30	147	0
1933	52.8	133	61	133	44.6	134	4.32	16	0
1932	52.2	140	60.6	135	43.8	139	1.45	85	0
1931	57.7	37	66.4	39	49	53	3.72	20	0
1930	55.9	82	62.2	120	49.5	40	3.90	19	0
1929	54.4	118	61.5	129	47.2	83	0.90	105	0
1928	57.8	35	66.8	32	48.7	60	0.21	152	0
1927	55.4	95	62.7	108	48.1	68	0.32	145	0
1926	56.7	61	66.1	43	47.3	81	0.78	110	0
1925	54.5	116	63.3	99	45.6	117	0.08	159	0
1924	55.3	97	64.8	63	45.7	115	0.26	151	0
1923	56.3	69	64.4	75	48.2	66	1.34	88	0
1922	52.5	137	60	138	45	127	3.45	27	0
1921	53.5	128	60.9	134	46.2	108	2.02	63	0
1920	54.6	113	61.7	127	47.5	80	0.43	133	0
1919	56.6	64	66.5	36	46.7	98	0.61	120	0
1918	54.5	116	61.9	123	47	88	1.64	77	0
1917	51.6	143	58.4	143	44.8	130	4.32	16	0
1916	52.5	137	58.2	148	46.8	94	7.56	3	0
1915	55.2	100	62.8	107	47.7	74	4.91	11	0
1914	56.3	69	63.1	102	49.5	40	3.59	22	0
1913	50.6	148	58.6	142	42.5	148	1.19	97	0
1912	56.9	51	65	60	48.9	56	0.66	117	0
1911	56.2	74	63.5	95	48.9	56	3.35	29	0
1910	52.2	140	60.1	137	44.3	136	2.00	64	0
1909	54.2	122	60	138	48.4	63	3.57	24	0
1908	56.9	51	63.6	92	50.2	30	2.80	42	0
1907	52.8	133	59.2	141	46.3	104	3.27	33	0
1906	54.6	113	62.2	120	47	88	0.98	104	0
1905	58.1	29	65.5	51	50.7	24	2.16	57	0
1904	55.7	86	64.6	66	46.8	94	0.04	163	0
1903	56.8	57	64.6	66	49	53	0.69	115	0
1902	56.3	69	64	84	48.7	60	1.70	73	0
1901	56.2	74	62.7	108	49.7	39	2.08	61	0
1900	57.7	37	63.7	90	51.8	12	0.69	115	0
1899	55.5	91	61.9	123	49.1	52	2.34	55	0
1898	50.8	147	58.3	146	43.4	145	1.71	72	0
1897	55.7	86	63.3	99	48.2	66	3.13	35	0
1896	55.5	91	64.3	78	46.7	98	1.27	92	0
1895	53.1	132	61.2	131	45.1	126	7.33	4	0
1894	49.5	150	58.4	143	40.6	151	0.29	150	0
1893	57.4	43	68.8	15	45.9	113	0.78	110	0
1892	55.1	103	64.2	79	46	111	1.58	79	0
1891	54.6	113	65.2	57	44	138	1.21	94	0
1890	51	146	58.4	143	43.6	142	2.79	44	0
1889	54.8	108	66.9	30	42.8	146	1.72	71	0
1888	51.5	145	58.2	148	44.8	130	1.96	65	0
1887	53.7	127	62.6	113	44.7	133	0.04	163	0
1886	55.8	83	62.3	117	49.3	46	6.95	5	0
1885	54	123	62.7	108	45.4	123	0.35	140	0
1884	55.1	103	64.6	66	45.6	117	1.34	88	0
1883	53.5	128	62.7	108	44.4	135	1.09	100	0
1882	50.3	149	58	150	42.6	147	4.53	14	0
1881	52.6	136	61.7	127	43.5	143	0.52	124	0
1880	52.8	133	61.8	125	43.8	139	0.61	120	0
1879	52.4	139	61.3	130	43.5	143	3.54	26	0
1878	55.2	100	62.6	113	47.8	72	1.45	85	0
1877	57.2	46	65	60	49.4	44	1.05	102	0
1876	51.6	143	58.3	146	44.9	128	2.47	50	0
1875	53.3	131	59.6	140	47	88	2.38	52	0
1874							3.11	36	31
1873							0.44	132	31
1872							0.99	103	31
1871							0.00	171	31
1866							1.90	66	31
1865							1.45	85	31
1864							0.02	166	31
1863							0.35	140	31
1861							1.10	99	31
1860							1.17	98	31
1859							0.48	129	31
1858							1.87	67	31
1857							0.21	152	31
1856							0.66	117	31
1855							2.40	51	31
1854							1.46	84	31
1853							0.50	127	31
1852							0.58	122	31
1851							0.03	165	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2003	61.7
2018	61.5
2014	61.3
1981	61.3
1984	61.2
1980	61.1
1978	61
1986	60.9
2015	60.8
1983	60.7
More years share the last value

Coldest
Year	Mean, °F
1949	47.8
1937	49.3
1894	49.5
1882	50.3
1913	50.6
1898	50.8
1890	51
1888	51.5
1917	51.6
1876	51.6

Wettest
Year	Precipitation, in
1993	9.09
1995	8.06
1916	7.56
1895	7.33
1886	6.95
1943	6.26
1978	5.95
1979	5.82
1980	5.58
2023	5.14

Driest
Year	Precipitation, in
1871	0.00
1976	trace
1948	trace
2014	0.01
2003	0.02
1864	0.02
1851	0.03
1904	0.04
1887	0.04
1972	0.07

The hottest, coldest and wettest days

Hottest day: 82°F; 31 January 2026
Coldest night: 38°F; 10 January 2026
Wettest day: 2.08 in; 1 January 2026

Every month, season and year

Months

Seasons

Years

San Diego, CA the day's answers

All-time records

Every answer in words

January 2026 brought 3.10 in of precipitation in San Diego, CA, the wettest January since 2024, 37th wettest of 171.
The hottest day of January 2026 in San Diego, CA: 82°F on Saturday 31 January 2026.
The coldest night of January 2026 in San Diego, CA: a low of 38°F on Saturday 10 January 2026.
The wettest day of January 2026 in San Diego, CA: 2.08 in on Thursday 1 January 2026.