San Diego, CA: Fall

9 October 2026: Fall 2026 so far averaged 75.9°F in San Diego, CA (1 day missing), the warmest 1 September to 9 October since 2015, 3rd warmest of 151.

Fall 2026 so far, to 9 October 2026

Mean temperature: 75.9°F; Warmest since 2015; 3rd warmest of 151
Precipitation: 0.02 in; Driest since 2024; 61st driest of 170

A normal 1 September to 9 October in San Diego, CA (1991 to 2020): a mean temperature of 70.7°F, between 68.5°F and 74.1°F in eight years of ten and 0.04 in of precipitation, between 0.00 in and 0.59 in in eight years of ten.

The mean temperature of every 1 September to 9 October in San Diego, CA since 1875: 75.9°F in 2026; the highest is 77.1°F, in 1984.

Normal range, 68.5 to 74.1°F

Every year, ranked, as a table

Every 1 September to 9 October 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	75.9	3	82.3	2	69.5	4	0.02	103	1
2025	70.9	36	76.1	51	65.8	22	0.48	26	0
2024	71.1	32	76.2	48	66	20	0.02	103	0
2023	70.4	43	75.8	58	64.9	38	0.05	83	0
2022	74.3	7	79.9	11	68.6	8	0.65	18	0
2021	72.2	17	78.1	25	66.4	15	1.30	7	0
2020	74.3	7	82.4	1	66.2	16	0.00	148	0
2019	71.1	32	77.7	27	64.4	44	0.11	62	0
2018	71.8	22	76.5	43	67.1	14	0.09	66	0
2017	72.2	17	78.1	25	66.2	16	0.08	67	0
2016	71.9	21	78.3	23	65.5	27	0.32	36	0
2015	76.3	2	82.1	3	70.4	3	1.65	5	0
2014	75.5	5	82	4	69.1	5	trace	113	0
2013	70.8	37	76.7	36	64.8	39	0.07	75	0
2012	74.1	9	80	9	68.3	10	trace	113	0
2011	68.2	91	73.2	104	63.1	67	0.57	22	0
2010	68.8	77	74.2	89	63.4	58	0.79	12	0
2009	70.6	38	76.1	51	65	33	trace	113	0
2008	71.4	27	76.7	36	66.1	18	0.18	52	0
2007	69.1	66	74.7	81	63.5	56	0.05	83	0
2006	69.3	62	74.5	84	64.2	47	0.00	148	0
2005	68.5	84	74.4	86	62.6	75	0.10	63	0
2004	71.4	27	76.7	36	66.1	18	trace	113	0
2003	69	68	72.9	109	65.1	32	trace	113	0
2002	69.1	66	74.8	79	63.4	58	0.32	36	0
2001	68.1	95	72.7	114	63.5	56	0.00	148	0
2000	69.9	47	74.6	82	65.3	29	0.08	67	0
1999	67.3	105	72.6	115	62	87	0.02	103	0
1998	69.7	51	74.4	86	65	33	0.03	95	0
1997	74.1	9	79.6	12	68.5	9	0.85	11	0
1996	69.8	48	73.8	97	65.7	24	0.03	95	0
1995	71	35	77.2	31	64.8	39	trace	113	0
1994	71.8	22	78.4	22	65.3	29	trace	113	0
1993	68.9	73	74.5	84	63.4	58	trace	113	0
1992	71.8	22	78.6	20	65	33	0.00	148	0
1991	69.7	51	75.4	67	64	50	0.28	40	0
1990	71.6	26	77.6	28	65.5	27	trace	113	0
1989	69.7	51	76.3	45	63.2	65	0.23	46	0
1988	69.6	56	75.5	64	63.7	53	trace	113	0
1987	70.6	38	76.8	33	64.4	44	0.70	15	0
1986	66.8	113	71.9	126	61.7	91	1.52	6	0
1985	70.4	43	76.5	43	64.3	46	0.34	34	0
1984	77.1	1	81.7	5	72.6	1	trace	113	0
1983	75.6	4	80.7	8	70.5	2	0.58	21	0
1982	72.2	17	78.5	21	66	20	0.38	32	0
1981	72.6	14	77.4	29	67.8	11	0.03	95	0
1980	69.8	48	73.9	96	65.7	24	trace	113	0
1979	75.2	6	81.3	6	69.1	5	0.00	148	0
1978	73.4	13	79.3	15	67.5	12	0.72	14	0
1977	72.1	20	76.7	36	67.4	13	0.39	30	0
1976	73.7	11	78.8	19	68.7	7	1.00	8	0
1975	70.6	38	76.6	42	64.6	42	0.04	89	0
1974	69.7	51	74.3	88	65	33	trace	113	0
1973	68	97	73.2	104	62.8	73	0.03	95	0
1972	68.8	77	74.2	89	63.4	58	0.44	27	0
1971	72.4	16	79.5	13	65.3	29	trace	113	0
1970	69.4	61	75.9	56	63	69	0.06	80	0
1969	69.5	60	75.4	67	63.7	53	trace	113	0
1968	70.3	45	76.3	45	64.2	47	trace	113	0
1967	71.3	30	76.8	33	65.7	24	0.08	67	0
1966	69.6	56	75.4	67	63.8	52	0.02	103	0
1965	68.6	82	75.5	64	61.6	94	0.29	39	0
1964	68.5	84	75.6	61	61.4	99	0.00	148	0
1963	73.5	12	81.1	7	65.8	22	1.90	3	0
1962	67.4	101	73.8	97	61.1	111	trace	113	0
1961	68.6	82	76.1	51	61	114	0.20	49	0
1960	71.7	25	79.3	15	64.1	49	0.07	75	0
1959	70.6	38	76.7	36	64.6	42	0.06	80	0
1958	72.5	15	80	9	65	33	0.62	20	0
1957	69	68	75.7	60	62.3	80	0.37	33	0
1956	71.4	27	79.4	14	63.4	58	trace	113	0
1955	69.6	56	76.2	48	63.1	67	trace	113	0
1954	68.3	89	75.2	73	61.4	99	0.00	148	0
1953	69	68	76.7	36	61.4	99	trace	113	0
1952	69.8	48	77.3	30	62.2	83	trace	113	0
1951	68.5	84	75.6	61	61.4	99	0.08	67	0
1950	67.2	107	73.6	101	60.8	117	trace	113	0
1949	68.9	73	75.6	61	62.3	80	trace	113	0
1948	68	97	76	54	60	126	trace	113	0
1947	70.5	42	78.2	24	62.8	73	0.18	52	0
1946	69.6	56	77.2	31	62	87	0.05	83	0
1945	71.1	32	79	17	63.2	65	0.03	95	0
1944	66.5	118	73.3	103	59.6	134	trace	113	0
1943	68.7	80	76.2	48	61.3	104	0.04	89	0
1942	67.4	101	74.2	89	60.6	120	0.00	148	0
1941	67.4	101	75.3	70	59.5	136	0.28	40	0
1940	68.2	91	75.2	73	61.3	104	0.10	63	0
1939	71.2	31	78.9	18	63.4	58	3.76	1	0
1938	68.9	73	75.3	70	62.6	75	0.15	56	1
1937	68.2	91	74.1	92	62.4	78	trace	113	0
1936	68	97	73.7	99	62.3	80	0.04	89	0
1935	66.5	118	71	137	61.9	89	0.02	103	0
1934	69.2	64	75.5	64	62.9	71	0.24	44	0
1933	63.3	149	67.5	151	59	142	0.02	103	0
1932	65.3	142	69.4	147	61.1	111	0.74	13	0
1931	69.7	51	75.8	58	63.6	55	trace	113	0
1930	66.9	112	72.6	115	61.3	104	0.22	47	0
1929									5
1928	65.6	138	71.3	135	59.9	129	trace	113	0
1927	66	124	71.5	130	60.5	124	0.04	89	0
1926	66.6	117	72.3	120	60.9	115	0.21	48	0
1925	65.7	131	71.9	126	59.5	136	3.50	2	0
1924	65.7	131	71.7	128	59.7	130	0.19	51	0
1923	67.3	105	72.8	111	61.8	90	0.34	34	0
1922	69	68	75.2	73	62.9	71	0.00	148	0
1921	66.2	122	71.5	130	60.9	115	1.70	4	0
1920	65.7	131	70.9	139	60.6	120	0.08	67	0
1919	65.7	131	71.4	134	60	126	0.26	43	0
1918	70.3	45	75.9	56	64.8	39	0.49	25	0
1917	67.8	100	74	93	61.6	94	trace	113	0
1916	63.3	149	68.3	149	58.2	148	0.94	9	0
1915	65.8	127	70.9	139	60.6	120	trace	113	0
1914	65.6	138	70.5	142	60.7	119	0.70	15	0
1913	69	68	75.3	70	62.6	75	0.02	103	0
1912	64.5	146	70.2	145	58.8	145	0.89	10	0
1911	65.9	126	72.4	118	59.4	138	0.10	63	0
1910	67.4	101	73.1	106	61.7	91	0.17	54	0
1909	65.7	131	72.1	123	59.3	139	0.02	103	0
1908	65.6	138	71.5	130	59.7	130	0.20	49	0
1907	65	144	71	137	58.9	143	0.08	67	0
1906	68.2	91	74.9	78	61.6	94	0.12	61	0
1905	66.8	113	72.4	118	61.2	109	0.50	24	0
1904	69.3	62	75.2	73	63.4	58	0.17	54	0
1903	67	110	72.2	122	61.7	91	0.07	75	0
1902	65.7	131	70	146	61.3	104	trace	113	0
1901	64.2	148	68.2	150	60.2	125	0.06	80	0
1900	65.1	143	70.5	142	59.7	130	0.08	67	0
1899	65.8	127	70.9	139	60.6	120	0.00	148	0
1898	67.1	108	72.9	109	61.3	104	0.07	75	0
1897	67.1	108	72.1	123	62.2	83	0.04	89	0
1896	66.3	121	72.6	115	60	126	trace	113	0
1895	66.8	113	74	93	59.6	134	0.01	111	0
1894	65.7	131	72.8	111	58.7	146	0.01	111	0
1893	64.7	145	71.6	129	57.8	149	0.00	148	0
1892	66	124	72.3	120	59.7	130	0.05	83	0
1891	68.9	73	76.8	33	61.1	111	0.08	67	0
1890	68.4	87	74.6	82	62.1	86	0.66	17	0
1889	69.2	64	76	54	62.4	78	0.24	44	0
1888	68.8	77	73.6	101	64	50	0.05	83	0
1887	65.6	138	70.5	142	60.8	117	trace	113	0
1886	66.4	120	71.3	135	61.6	94	0.00	148	0
1885	68.3	89	75.2	73	61.4	99	trace	113	0
1884	64.5	146	71.5	130	57.5	150	0.14	57	0
1883	68.7	80	76.3	45	61.2	109	0.07	75	0
1882	65.8	127	72.8	111	58.9	143	0.27	42	0
1881	65.8	127	73	108	58.7	146	0.04	89	0
1880	63.3	149	69.2	148	57.5	150	0.53	23	0
1879	66.2	122	73.1	106	59.3	139	0.13	59	0
1878	67	110	74.8	79	59.3	139	0.00	148	0
1877	68.1	95	74	93	62.2	83	trace	113	0
1876	66.8	113	72.1	123	61.6	94	0.03	95	0
1875	68.4	87	73.7	99	63	69	0.39	30	0
1874							0.40	28	33
1873							0.00	148	39
1872							0.00	148	39
1870							0.00	148	39
1865							0.00	148	39
1864							0.00	148	39
1863							0.40	28	39
1862							0.00	148	39
1861							0.14	57	39
1860							0.03	95	39
1859							0.00	148	39
1858							0.31	38	39
1857							0.64	19	39
1856							0.05	83	39
1855							0.00	148	39
1854							0.13	59	39
1853							0.00	148	39
1852							0.00	148	39
1851							0.03	95	39

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1984	77.1
2015	76.3
2026	75.9
1983	75.6
2014	75.5
1979	75.2
2022	74.3
2020	74.3
2012	74.1
1997	74.1

Coldest
Year	Mean, °F
1933	63.3
1916	63.3
1880	63.3
1901	64.2
1912	64.5
1884	64.5
1893	64.7
1907	65
1900	65.1
1932	65.3

Wettest
Year	Precipitation, in
1939	3.76
1925	3.50
1963	1.90
1921	1.70
2015	1.65
1986	1.52
2021	1.30
1976	1.00
1916	0.94
1912	0.89

Driest
Year	Precipitation, in
2020	0.00
2006	0.00
2001	0.00
1992	0.00
1979	0.00
1964	0.00
1954	0.00
1942	0.00
1922	0.00
1899	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 100°F; 4 October 2026
Coldest night: 63°F; 29 September 2026, 3 September 2026
Wettest day: 0.02 in; 27 September 2026

Every month, season and year

Months

Seasons

Years

San Diego, CA the day's answers

All-time records

Every answer in words

Fall 2026 so far brought 0.02 in of precipitation in San Diego, CA, the driest 1 September to 9 October since 2024, tied 61st driest of 170 (with 2024, 1999, 1966 and 4 other years).
The hottest day of fall 2026 so far in San Diego, CA: 100°F on Sunday 4 October 2026.
The coldest night of fall 2026 so far in San Diego, CA: a low of 63°F on Tuesday 29 September 2026 and Thursday 3 September 2026.
The wettest day of fall 2026 so far in San Diego, CA: 0.02 in on Sunday 27 September 2026.