San Diego, CA: May

31 May 2026: May 2026 averaged 65.2°F in San Diego, CA, the warmest May since 2025, tied 19th warmest of 152 (with 2025).

May 2026

Mean temperature: 65.2°F; Warmest since 2025; 19th warmest of 152
Precipitation: 0.24 in; Wettest since 2019; 52nd wettest of 169

A normal May in San Diego, CA (1991 to 2020): a mean temperature of 64.1°F, between 62°F and 68.5°F in eight years of ten and 0.07 in of precipitation, between 0.00 in and 0.77 in in eight years of ten.

The mean temperature of every May in San Diego, CA since 1875: 65.2°F in 2026; the highest is 69.2°F, in 2014.

Normal range, 62 to 68.5°F

Every year, ranked, as a table

Every May 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	65.2	19	69.9	32	60.5	20	0.24	52	0
2025	65.2	19	70.1	27	60.3	23	0.15	66	1
2024	63.2	63	67.5	84	59	42	0.07	93	0
2023	62.5	79	66.5	114	58.5	51	0.09	83	0
2022	62.3	85	67.4	93	57.3	77	0.02	118	0
2021	64.8	25	69	51	60.6	19	0.07	93	0
2020	68.7	2	74	4	63.5	2	0.02	118	0
2019	63.8	45	68.1	71	59.5	32	0.80	14	0
2018	63.5	54	67.8	81	59.3	35	0.12	71	0
2017	64.9	24	69.8	37	60	26	0.92	12	0
2016	65	22	68.8	56	61.2	13	0.44	30	0
2015	64	42	68.1	71	59.8	29	2.39	2	0
2014	69.2	1	75.3	2	63.1	6	trace	145	1
2013	65.9	14	70.4	22	61.3	12	0.26	51	0
2012	63.7	49	67.8	81	59.7	31	0.02	118	0
2011	64.7	28	70.1	27	59.3	35	0.36	37	0
2010	62.1	89	66.7	113	57.6	69	0.01	127	0
2009	64.1	39	68	76	60.2	25	0.04	106	0
2008	63.4	57	68.5	65	58.3	54	0.23	54	0
2007	63	67	67.3	95	58.7	45	trace	145	0
2006	64.7	28	68.7	60	60.7	16	0.77	15	0
2005	65.4	18	70.2	25	60.7	16	0.12	71	0
2004	68.5	4	73.7	5	63.2	4	trace	145	0
2003	62.4	84	66.9	106	57.9	62	0.30	47	0
2002	61.8	101	66.1	119	57.6	69	trace	145	0
2001	63.6	52	67.5	84	59.8	29	0.01	127	0
2000	64.6	33	69.1	47	60	26	trace	145	0
1999	60.5	130	64.4	138	56.6	90	0.06	99	0
1998	62.8	74	67	103	58.5	51	0.64	21	0
1997	68.6	3	73.5	6	63.8	1	trace	145	0
1996	66.8	10	71.2	14	62.4	8	0.02	118	0
1995	62	95	66.8	112	57.2	81	0.59	24	0
1994	62.1	89	66.5	114	57.7	66	0.07	93	0
1993	66	13	71.5	12	60.5	20	0.01	127	0
1992	67.9	7	72.4	9	63.5	2	0.07	93	0
1991	62	95	67.6	83	56.5	95	0.01	127	0
1990	64.2	38	69.4	43	59.1	40	0.51	27	0
1989	63.7	49	68.7	60	58.6	48	0.04	106	0
1988	63.8	45	69.7	40	58	60	0.08	89	0
1987	64.6	33	69	51	60.3	23	0.03	114	0
1986	64.6	33	69.9	32	59.2	39	0.00	163	0
1985	64.7	28	68.5	65	61	15	trace	145	0
1984	68.1	5	73.1	7	63	7	0.00	163	0
1983	66.2	11	71.1	15	61.2	13	0.01	127	0
1982	65.8	16	69.8	37	61.7	10	0.01	127	0
1981	67.3	8	71.4	13	63.2	4	0.04	106	0
1980	63.8	45	67.5	84	60	26	0.65	20	0
1979	65.5	17	70.4	22	60.7	16	0.09	83	0
1978	68.1	5	74.5	3	61.8	9	0.04	106	0
1977	61.9	98	66.3	117	57.5	71	1.79	6	0
1976	65.1	21	69.9	32	60.4	22	0.27	49	0
1975	62.1	89	67.2	99	57.1	82	0.01	127	0
1974	63.3	60	68.1	71	58.5	51	0.01	127	0
1973	63.4	57	68	76	58.7	45	trace	145	0
1972	64.7	28	70	30	59.3	35	0.10	79	0
1971	61.4	111	66.4	116	56.5	95	0.95	11	0
1970	63.5	54	68.9	54	58.2	56	0.01	127	0
1969	62.9	71	67.5	84	58.2	56	0.17	61	0
1968	63.9	43	69.1	47	58.6	48	0.08	89	0
1967	63.5	54	70	30	57	83	0.05	102	0
1966	63.4	57	67.5	84	59.4	33	0.02	118	0
1965	62.5	79	68.1	71	56.8	87	trace	145	0
1964	60.9	119	66.9	106	54.8	135	0.15	66	0
1963	63.6	52	69.4	43	57.8	64	0.09	83	0
1962	62.5	79	68.6	62	56.5	95	0.62	22	0
1961	61.5	105	67.1	101	55.9	113	0.01	127	0
1960	64.8	25	71.7	11	57.8	64	0.17	61	0
1959	64.3	37	69.6	41	59	42	trace	145	0
1958	65.9	14	72.4	9	59.4	33	0.40	35	0
1957	63.2	63	68.6	62	57.7	66	0.88	13	0
1956	64.5	36	70.9	17	58	60	0.10	79	0
1955	61.7	104	67.5	84	55.9	113	0.49	28	0
1954	62.9	71	68.4	67	57.4	73	0.01	127	0
1953	62.9	71	70.5	20	55.2	128	0.09	83	0
1952	64.1	39	70.5	20	57.7	66	0.00	163	0
1951	62.1	89	68.3	68	56	109	0.00	163	0
1950	61.1	113	66.9	106	55.4	125	0.09	83	0
1949	63	67	69.8	37	56.1	104	0.41	34	0
1948	62.5	79	70.2	25	54.7	136	0.01	127	0
1947	63.9	43	70.4	22	57.4	73	0.17	61	0
1946	63.7	49	69.2	46	58.2	56	0.01	127	0
1945	62.6	78	69.3	45	55.9	113	0.04	106	0
1944	62.8	74	69.5	42	56.1	104	0.22	55	0
1943	65	22	73.1	7	56.9	85	0.02	118	0
1942	63.3	60	70.6	19	56	109	0.11	78	0
1941	67.2	9	75.4	1	59.1	40	trace	145	0
1940	64.8	25	70.9	17	58.6	48	trace	145	0
1939	62.3	85	67.5	84	57	83	0.01	127	0
1938	61.5	105	67.1	101	56	109	0.15	66	0
1937	62.1	89	66.9	106	57.3	77	0.32	43	0
1936	63.3	60	68.6	62	57.9	62	trace	145	0
1935	61.5	105	66.3	117	56.8	87	0.02	118	0
1934	64.7	28	70.1	27	59.3	35	0.02	118	0
1933	58.1	150	63.5	146	52.8	150	0.53	26	0
1932	61.8	101	67	103	56.6	90	0.01	127	0
1931	66.2	11	71.1	15	61.4	11	0.24	52	0
1930	60	138	65.5	128	54.6	137	1.81	5	0
1929	62.7	77	68.8	56	56.6	90	0.05	102	0
1928	63	67	67.3	95	58.7	45	0.36	37	0
1927	61.5	105	67	103	56.1	104	0.12	71	1
1926	63.8	45	68.8	56	58.8	44	0.01	127	0
1925	62.3	85	67.3	95	57.3	77	0.15	66	0
1924	63	67	67.9	78	58.1	59	0.00	163	0
1923	63.2	63	69	51	57.4	73	0.00	163	0
1922	60.3	135	66	121	54.6	137	0.36	37	0
1921	58.5	148	62.8	150	54.1	145	2.54	1	0
1920	59.8	142	64.6	134	55	133	0.44	30	0
1919	61	117	65.3	131	56.6	90	0.34	42	0
1918	60.8	124	65.3	131	56.3	100	trace	145	0
1917	58.4	149	63	149	53.8	148	0.31	46	0
1916	60.9	119	65.8	123	55.9	113	0.01	127	0
1915	60.6	129	65.9	122	55.4	125	0.28	48	0
1914	60.2	136	64.4	138	55.9	113	0.08	89	0
1913	59.7	144	64.3	142	55.1	129	0.07	93	0
1912	60.5	130	65.7	125	55.4	125	0.17	61	0
1911	59.3	145	64.3	142	54.3	143	0.01	127	0
1910	61.1	113	66.1	119	56.1	104	0.05	102	0
1909	59.8	142	64	145	55.6	121	trace	145	0
1908	57.5	152	62.1	151	52.8	150	0.16	65	0
1907	60.7	127	65.6	127	55.8	120	0.07	93	0
1906	60	138	64.6	134	55.5	124	0.72	17	0
1905	59.9	141	64.7	133	55.1	129	0.35	40	0
1904	60.5	130	64.6	134	56.4	99	0.12	71	0
1903	60.5	130	64.4	138	56.6	90	0.14	70	0
1902	60.2	136	64.4	138	56	109	0.06	99	0
1901	60	138	63.3	147	56.8	87	0.77	15	0
1900	60.9	119	65.5	128	56.3	100	1.45	7	0
1899	57.7	151	61	152	54.4	142	0.10	79	0
1898	58.8	146	63.2	148	54.5	140	0.66	19	0
1897	60.9	119	64.3	142	57.5	71	0.12	71	0
1896	62	95	68.9	54	55	133	0.03	114	0
1895	61.9	98	67.3	95	56.5	95	0.19	59	0
1894	58.7	147	64.6	134	52.7	152	0.09	83	0
1893	61	117	67.9	78	54.1	145	0.39	36	0
1892	61.1	113	67.2	99	55.1	129	1.15	9	0
1891	60.8	124	65.4	130	56.2	102	0.35	40	0
1890	60.5	130	65.8	123	55.1	129	0.08	89	0
1889	60.7	127	66.9	106	54.6	137	0.03	114	0
1888	61.9	98	66.9	106	56.9	85	0.22	55	0
1887	62.1	89	68.2	70	55.9	113	0.47	29	0
1886	60.9	119	67.4	93	54.5	140	0.04	106	0
1885	64.1	39	69.9	32	58.3	54	0.61	23	0
1884	61.8	101	67.5	84	56.1	104	2.17	3	0
1883	61.1	113	67.9	78	54.3	143	1.14	10	0
1882	62.3	85	69.1	47	55.6	121	0.18	60	0
1881	62.8	74	68.1	71	57.4	73	0.04	106	0
1880	61.2	112	68.3	68	54.1	145	0.06	99	0
1879	61.5	105	69.9	32	53.2	149	trace	145	0
1878	62.5	79	68.8	56	56.2	102	0.58	25	0
1877	60.8	124	65.7	125	55.9	113	0.43	32	0
1876	61.5	105	67.5	84	55.6	121	0.05	102	0
1875	63.2	63	69.1	47	57.3	77	0.20	58	0
1874							0.32	43	31
1873							0.03	114	31
1872							0.12	71	31
1865							trace	145	31
1864							1.39	8	31
1863							0.04	106	31
1862							0.12	71	31
1861							trace	145	31
1860							0.02	118	31
1858							0.00	163	31
1857							0.42	33	31
1856							0.27	49	31
1855							0.10	79	31
1854							0.21	57	31
1853							2.10	4	31
1852							0.32	43	31
1851							0.71	18	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2014	69.2
2020	68.7
1997	68.6
2004	68.5
1984	68.1
1978	68.1
1992	67.9
1981	67.3
1941	67.2
1996	66.8

Coldest
Year	Mean, °F
1908	57.5
1899	57.7
1933	58.1
1917	58.4
1921	58.5
1894	58.7
1898	58.8
1911	59.3
1913	59.7
1920	59.8
More years share the last value

Wettest
Year	Precipitation, in
1921	2.54
2015	2.39
1884	2.17
1853	2.10
1930	1.81
1977	1.79
1900	1.45
1864	1.39
1892	1.15
1883	1.14

Driest
Year	Precipitation, in
1986	0.00
1984	0.00
1952	0.00
1951	0.00
1924	0.00
1923	0.00
1858	0.00
2014	trace
2007	trace
2004	trace
More years share the last value

The hottest, coldest and wettest days

Hottest day: 78°F; 20 May 2026
Coldest night: 56°F; 19 May 2026, 5 May 2026
Wettest day: 0.14 in; 5 May 2026

Every month, season and year

Months

Seasons

Years

San Diego, CA the day's answers

All-time records

Every answer in words

May 2026 brought 0.24 in of precipitation in San Diego, CA, the wettest May since 2019, tied 52nd wettest of 169 (with 1931).
The hottest day of May 2026 in San Diego, CA: 78°F on Wednesday 20 May 2026.
The coldest night of May 2026 in San Diego, CA: a low of 56°F on Tuesday 19 May 2026 and Tuesday 5 May 2026.
The wettest day of May 2026 in San Diego, CA: 0.14 in on Tuesday 5 May 2026.