San Francisco Airport, CA: May

31 May 2026: May 2026 averaged 60°F in San Francisco Airport, CA, the warmest May since 2024, 24th warmest of 81.

May 2026

Mean temperature: 60°F; Warmest since 2024; 24th warmest of 81
Precipitation: 0.31 in; Wettest since 2024; 30th wettest of 81

A normal May in San Francisco Airport, CA (1991 to 2020): a mean temperature of 59.6°F, between 57°F and 62.7°F in eight years of ten and 0.23 in of precipitation, between 0.00 in and 1.27 in in eight years of ten.

The mean temperature of every May in San Francisco Airport, CA since 1946: 60°F in 2026; the highest is 64.4°F, in 1997.

Normal range, 57 to 62.7°F

Every year, ranked, as a table

Every May in San Francisco Airport, CA from 1946 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
2026	60	24	67.3	34	52.7	15	0.31	30
2025	59.6	27	67.6	30	51.5	27	0.11	47
2024	60.8	13	69.1	14	52.5	16	0.95	8
2023	59.4	30	65.5	54	53.4	9	0.72	10
2022	60.1	22	68.6	17	51.5	27	0.00	80
2021	60.1	22	68.2	22	52	20	trace	66
2020	62.5	5	71.8	6	53.1	10	0.25	35
2019	58.6	39	65.3	56	51.8	23	2.00	3
2018	60.5	14	67.2	37	53.9	5	0.01	63
2017	60.9	12	69.8	12	52	20	trace	66
2016	61.1	11	68.4	18	53.7	7	0.05	56
2015	58.5	42	64.1	67	52.9	13	0.02	60
2014	63.5	2	72	5	54.9	2	trace	66
2013	60.4	16	68.4	18	52.5	16	0.01	63
2012	58.4	44	66.6	44	50.2	44	trace	66
2011	56.9	63	63.9	71	49.8	53	0.47	20
2010	57.6	56	64.7	61	50.4	41	0.69	11
2009	59.4	30	67.4	33	51.4	29	0.36	25
2008	58.7	37	66.6	44	50.8	34	trace	66
2007	58.8	36	66.8	41	50.8	34	0.09	49
2006	59.8	25	67.8	27	51.8	23	0.37	24
2005	61.5	9	68	24	54.9	2	1.15	7
2004	60.3	19	67.6	30	53.1	10	0.07	51
2003	58.9	35	66.4	49	51.4	29	0.63	12
2002	58	51	65.1	58	50.8	34	0.48	19
2001	62.6	4	72.4	4	52.8	14	0.00	80
2000	60.2	21	68	24	52.4	18	0.53	16
1999	55.5	77	62.5	77	48.4	70	0.10	48
1998	57.7	54	63.3	76	52.1	19	2.37	2
1997	64.4	1	73.2	1	55.5	1	0.21	41
1996	60.4	16	68.9	15	51.9	22	1.24	6
1995	57	61	63.7	72	50.2	44	0.93	9
1994	58.4	44	65.2	57	51.7	25	1.52	5
1993	62.1	7	70.6	8	53.7	7	0.55	14
1992	63.4	3	72.5	3	54.3	4	trace	66
1991	56.8	64	64.6	63	49.1	61	0.21	41
1990	59	33	66.6	44	51.4	29	1.55	4
1989	59.8	25	68.9	15	50.7	38	0.04	58
1988	59.5	28	68.2	22	50.7	38	0.29	31
1987	61.5	9	70	11	53.1	10	0.06	55
1986	58.6	39	67.8	27	49.4	58	0.15	44
1985	58.6	39	67.3	34	49.9	50	0.05	56
1984	61.8	8	72.8	2	50.8	34	trace	66
1983	57.7	54	65.1	58	50.4	41	0.32	28
1982	57.4	58	66.5	47	48.2	72	trace	66
1981	59	33	68.3	21	49.7	55	0.07	51
1980	56.3	70	64.1	67	48.5	68	0.24	37
1979	60.4	16	69.6	13	51.2	32	0.13	45
1978	60.3	19	70.5	9	50.2	44	0.02	60
1977	55.8	74	62.5	77	49	62	0.41	23
1976	58.3	48	67.6	30	48.9	64	trace	66
1975	58.4	44	68.4	18	48.3	71	0.02	60
1974	56.2	72	64.2	65	48.2	72	trace	66
1973	58.7	37	67.1	38	50.2	44	0.07	51
1972	57.6	56	66.5	47	48.7	65	trace	66
1971	56.4	69	63.6	74	49.2	59	0.25	35
1970	60.5	14	70.2	10	50.7	38	0.01	63
1969	59.5	28	67.7	29	51.2	32	trace	66
1968	56.2	72	64.5	64	48	74	0.28	32
1967	58.4	44	67	39	49.9	50	0.26	33
1966	57.3	59	65.9	52	48.6	67	0.12	46
1965	55.2	79	64	69	46.5	80	trace	66
1964	55.8	74	63.7	72	47.9	75	0.32	28
1963	56.8	64	63.6	74	50	49	0.50	17
1962	56.7	67	64.7	61	48.7	65	trace	66
1961	57	61	64.2	65	49.9	50	0.60	13
1960	58.3	48	67	39	49.5	57	0.54	15
1959	59.1	32	68	24	50.3	43	0.04	58
1958	62.4	6	70.8	7	53.9	5	0.33	27
1957	58.5	42	65.4	55	51.7	25	3.81	1
1956	58.3	48	66.8	41	49.8	53	0.49	18
1955	57.3	59	67.3	34	47.3	77	0.09	49
1954	56.7	67	65.6	53	47.7	76	0.07	51
1953	55.5	77	64	69	47.1	79	0.22	39
1952	56.8	64	66.3	50	47.2	78	0.24	37
1951	58	51	66.7	43	49.2	59	0.45	22
1950	55.6	76	65.1	58	46.2	81	0.20	43
1949	56.3	70	62.4	79	50.2	44	0.46	21
1948	54.8	81	60.5	81	49	62	0.35	26
1947	57.9	53	66.2	51	49.7	55	0.26	33
1946	55.1	80	61.6	80	48.5	68	0.22	39

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1997	64.4
2014	63.5
1992	63.4
2001	62.6
2020	62.5
1958	62.4
1993	62.1
1984	61.8
2005	61.5
1987	61.5

Coldest
Year	Mean, °F
1948	54.8
1946	55.1
1965	55.2
1999	55.5
1953	55.5
1950	55.6
1977	55.8
1964	55.8
1974	56.2
1968	56.2

Wettest
Year	Precipitation, in
1957	3.81
1998	2.37
2019	2.00
1990	1.55
1994	1.52
1996	1.24
2005	1.15
2024	0.95
1995	0.93
2023	0.72

Driest
Year	Precipitation, in
2022	0.00
2001	0.00
2021	trace
2017	trace
2014	trace
2012	trace
2008	trace
1992	trace
1984	trace
1982	trace
More years share the last value

The hottest, coldest and wettest days

Hottest day: 82°F; 19 May 2026
Coldest night: 50°F; 22 May 2026, 17 May 2026, 11 May 2026
Wettest day: 0.20 in; 28 May 2026

Every month, season and year

Months

Seasons

Years

San Francisco Airport, CA the day's answers

All-time records

Every answer in words

May 2026 brought 0.31 in of precipitation in San Francisco Airport, CA, the wettest May since 2024, 30th wettest of 81.
The hottest day of May 2026 in San Francisco Airport, CA: 82°F on Tuesday 19 May 2026.
The coldest night of May 2026 in San Francisco Airport, CA: a low of 50°F on Friday 22 May 2026, Sunday 17 May 2026 and Monday 11 May 2026.
The wettest day of May 2026 in San Francisco Airport, CA: 0.20 in on Thursday 28 May 2026.