Sydney · Australia

Sydney in May: every year compared

In May, Sydney averages highs of 20.1 °C and lows of 9.8 °C, with 45 mm of precipitation. The warmest May was 1958 (15.9 °C), the coldest 1970 (12.5 °C).

Avg. highAvg. high 20.1 °C

Avg. lowAvg. low 9.8 °C

PrecipitationPrecipitation 45 mm

Rainy daysRainy days 6

Day by day through May

Normal high and low for each day of May in Sydney.

Normal high and low, day by dayNormal 1991–2020

Every May in Sydney, ranked

86 months of May since 1940. The last one, 2025, ranks 2 of 86 (+1.3 °C vs normal).

194019832025

2025 · 15.8 °C · +1.3 °C vs normal · rank 2 of 86

Warmest years

1195815.9 °C
2198915.8 °C
3201615.8 °C
4202515.8 °C
5198315.5 °C

Coldest years

1197012.5 °C
2202312.7 °C
3197612.8 °C
4196613.0 °C
5194613.0 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	15.8 °C	20.1 °C	12.2 °C	124 mm	0 days	15 days
2024	14.5 °C	19.6 °C	10.7 °C	109 mm	0 days	13 days
2023	12.7 °C	19.6 °C	7.1 °C	17 mm	0 days	6 days
2022	14.7 °C	19.9 °C	10.6 °C	94 mm	0 days	14 days
2021	14.4 °C	20.0 °C	9.8 °C	48 mm	0 days	7 days
2020	14.0 °C	19.5 °C	9.6 °C	78 mm	0 days	7 days
2019	15.0 °C	21.8 °C	9.7 °C	17 mm	0 days	3 days
2018	14.7 °C	21.6 °C	8.8 °C	3 mm	0 days	2 days
2017	14.4 °C	20.4 °C	9.4 °C	41 mm	0 days	4 days
2016	15.8 °C	22.9 °C	10.2 °C	17 mm	0 days	4 days
2015	14.6 °C	19.4 °C	10.5 °C	38 mm	0 days	5 days
2014	15.4 °C	21.8 °C	10.2 °C	12 mm	0 days	4 days
2013	14.1 °C	20.0 °C	9.1 °C	57 mm	0 days	4 days
2012	13.2 °C	19.8 °C	8.2 °C	23 mm	0 days	3 days
2011	13.1 °C	18.7 °C	8.3 °C	38 mm	0 days	5 days
2010	14.4 °C	19.9 °C	9.8 °C	72 mm	0 days	11 days
2009	14.8 °C	19.7 °C	10.6 °C	36 mm	0 days	8 days
2008	13.5 °C	19.9 °C	8.4 °C	8 mm	0 days	4 days
2007	15.5 °C	21.7 °C	10.2 °C	27 mm	0 days	4 days
2006	13.8 °C	19.8 °C	8.9 °C	12 mm	0 days	4 days
2005	14.4 °C	20.0 °C	9.6 °C	25 mm	0 days	6 days
2004	14.1 °C	20.7 °C	8.4 °C	15 mm	0 days	2 days
2003	15.2 °C	19.6 °C	11.7 °C	119 mm	0 days	11 days
2002	14.2 °C	19.2 °C	10.1 °C	45 mm	0 days	5 days
2001	13.5 °C	18.9 °C	9.1 °C	59 mm	0 days	6 days
2000	13.8 °C	19.2 °C	9.3 °C	57 mm	0 days	7 days
1999	14.4 °C	20.8 °C	9.2 °C	14 mm	0 days	6 days
1998	14.9 °C	19.5 °C	11.0 °C	145 mm	0 days	11 days
1997	15.0 °C	19.5 °C	11.1 °C	77 mm	0 days	12 days
1996	14.9 °C	20.1 °C	10.9 °C	65 mm	0 days	11 days
1995	15.5 °C	19.4 °C	12.2 °C	96 mm	0 days	13 days
1994	14.7 °C	20.9 °C	9.4 °C	15 mm	0 days	4 days
1993	14.0 °C	20.0 °C	9.0 °C	17 mm	0 days	4 days
1992	14.2 °C	18.9 °C	10.3 °C	22 mm	0 days	5 days
1991	15.0 °C	19.7 °C	11.0 °C	90 mm	0 days	13 days
1990	15.0 °C	20.4 °C	10.7 °C	114 mm	0 days	12 days
1989	15.8 °C	19.8 °C	12.3 °C	62 mm	0 days	11 days
1988	15.0 °C	19.8 °C	11.5 °C	23 mm	0 days	6 days
1987	14.3 °C	19.5 °C	10.3 °C	51 mm	0 days	10 days
1986	14.4 °C	19.7 °C	10.2 °C	24 mm	0 days	6 days
1985	14.7 °C	19.3 °C	10.8 °C	44 mm	0 days	10 days
1984	13.1 °C	19.0 °C	8.7 °C	91 mm	0 days	7 days
1983	15.5 °C	19.8 °C	11.8 °C	77 mm	0 days	11 days
1982	13.9 °C	21.6 °C	8.1 °C	6 mm	0 days	2 days
1981	14.4 °C	19.3 °C	10.5 °C	128 mm	0 days	7 days
1980	15.1 °C	19.9 °C	11.3 °C	136 mm	0 days	15 days
1979	13.5 °C	18.1 °C	9.7 °C	84 mm	0 days	8 days
1978	14.4 °C	20.1 °C	9.6 °C	129 mm	0 days	10 days
1977	13.8 °C	18.9 °C	9.6 °C	158 mm	0 days	9 days
1976	12.8 °C	18.6 °C	8.4 °C	28 mm	0 days	6 days
1975	13.6 °C	19.7 °C	8.9 °C	9 mm	0 days	3 days
1974	14.3 °C	18.3 °C	10.7 °C	140 mm	0 days	11 days
1973	14.1 °C	20.5 °C	9.0 °C	14 mm	0 days	1 day
1972	13.9 °C	18.6 °C	10.2 °C	16 mm	0 days	4 days
1971	13.2 °C	18.9 °C	8.8 °C	56 mm	0 days	5 days
1970	12.5 °C	17.6 °C	8.3 °C	18 mm	0 days	5 days
1969	13.6 °C	18.4 °C	9.8 °C	38 mm	0 days	13 days
1968	13.6 °C	18.4 °C	9.2 °C	99 mm	0 days	5 days
1967	14.0 °C	19.9 °C	9.5 °C	24 mm	0 days	4 days
1966	13.0 °C	18.9 °C	8.1 °C	27 mm	0 days	6 days
1965	14.2 °C	20.5 °C	9.3 °C	21 mm	0 days	9 days
1964	13.2 °C	19.2 °C	8.5 °C	27 mm	0 days	6 days
1963	15.1 °C	18.9 °C	11.7 °C	126 mm	0 days	13 days
1962	13.6 °C	18.4 °C	9.5 °C	72 mm	0 days	8 days
1961	13.2 °C	18.9 °C	8.6 °C	6 mm	0 days	1 day
1960	14.0 °C	18.6 °C	10.2 °C	24 mm	0 days	10 days
1959	13.6 °C	18.2 °C	9.5 °C	15 mm	0 days	6 days
1958	15.9 °C	22.3 °C	10.8 °C	22 mm	0 days	7 days
1957	13.4 °C	21.7 °C	6.5 °C	0 mm	1 day	0 days
1956	14.4 °C	19.0 °C	10.9 °C	62 mm	0 days	8 days
1955	13.8 °C	18.7 °C	9.7 °C	40 mm	0 days	7 days
1954	13.5 °C	19.1 °C	8.8 °C	12 mm	0 days	4 days
1953	14.1 °C	19.4 °C	9.8 °C	129 mm	0 days	9 days
1952	13.5 °C	18.7 °C	9.1 °C	16 mm	0 days	6 days
1951	14.0 °C	19.0 °C	9.7 °C	24 mm	0 days	5 days
1950	14.1 °C	17.7 °C	10.7 °C	47 mm	0 days	9 days
1949	13.9 °C	18.7 °C	9.9 °C	28 mm	0 days	7 days
1948	13.3 °C	18.7 °C	8.8 °C	55 mm	0 days	4 days
1947	14.3 °C	19.3 °C	10.1 °C	32 mm	0 days	7 days
1946	13.0 °C	18.7 °C	8.4 °C	24 mm	0 days	3 days
1945	13.1 °C	18.4 °C	8.6 °C	42 mm	0 days	7 days
1944	13.4 °C	18.8 °C	8.7 °C	26 mm	0 days	4 days
1943	13.5 °C	18.3 °C	9.8 °C	51 mm	0 days	10 days
1942	15.2 °C	20.1 °C	11.1 °C	56 mm	1 day	8 days
1941	13.1 °C	17.3 °C	9.4 °C	68 mm	0 days	10 days
1940	14.4 °C	18.2 °C	11.2 °C	87 mm	0 days	14 days

May records

Hottest day

30.0 °C

May 4, 1942 estimate

Nearby station: 30.0 °C on May 13, 1957 measured

Coldest night

1.4 °C

May 29, 1987 estimate

Nearby station: 3.0 °C on May 22, 1965 measured

Wettest day

64 mm

May 5, 1998 estimate

The weather on your birthday in Sydney

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is Sydney in May?

Highs average 20.1 °C and lows 9.8 °C. A typical May brings 0 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Sydney in May?

About 45 mm falls in May, over some 6 days with at least 1 mm. The wettest May was 1977 (158 mm), the driest 1957 (0 mm).

What was the warmest May in Sydney?

1958, with a mean temperature of 15.9 °C. The coldest was 1970 (12.5 °C). The last one, 2025, ranks 2 of 86.