Beijing · China

Beijing in September: every year compared

In September, Beijing averages highs of 27.0 °C and lows of 15.6 °C, with 56 mm of precipitation. The warmest September was 1998 (23.6 °C), the coldest 1951 (17.2 °C).

Avg. highAvg. high 27.0 °C

Avg. lowAvg. low 15.6 °C

PrecipitationPrecipitation 56 mm

Rainy daysRainy days 7

Day by day through September

Normal high and low for each day of September in Beijing.

Normal high and low, day by dayNormal 1991–2020

Every September in Beijing, ranked

86 months of September since 1940. The last one, 2025, ranks 11 of 86 (+0.7 °C vs normal).

194019832025

2025 · 21.7 °C · +0.7 °C vs normal · rank 11 of 86

Warmest years

1199823.6 °C
2194423.3 °C
3201923.0 °C
4202222.7 °C
5200722.6 °C

Coldest years

1195117.2 °C
2195717.6 °C
3194717.9 °C
4198518.4 °C
5196618.4 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	21.7 °C	27.8 °C	16.4 °C	20 mm	10 days	4 days
2024	20.9 °C	25.3 °C	16.8 °C	70 mm	1 day	10 days
2023	21.8 °C	27.5 °C	16.6 °C	73 mm	5 days	5 days
2022	22.7 °C	30.2 °C	15.8 °C	1 mm	17 days	0 days
2021	21.4 °C	25.8 °C	17.4 °C	159 mm	1 day	12 days
2020	21.1 °C	26.9 °C	15.9 °C	59 mm	7 days	6 days
2019	23.0 °C	30.2 °C	16.6 °C	51 mm	15 days	4 days
2018	20.5 °C	26.5 °C	14.9 °C	30 mm	3 days	3 days
2017	21.9 °C	28.2 °C	15.8 °C	10 mm	8 days	2 days
2016	21.3 °C	26.7 °C	16.4 °C	63 mm	8 days	7 days
2015	20.2 °C	25.7 °C	15.1 °C	93 mm	3 days	11 days
2014	20.0 °C	25.2 °C	15.1 °C	107 mm	1 day	7 days
2013	20.4 °C	26.1 °C	15.4 °C	58 mm	2 days	9 days
2012	20.9 °C	27.3 °C	15.3 °C	54 mm	5 days	8 days
2011	19.9 °C	25.9 °C	14.6 °C	27 mm	4 days	4 days
2010	21.0 °C	26.8 °C	15.7 °C	84 mm	9 days	9 days
2009	21.2 °C	27.1 °C	16.2 °C	26 mm	3 days	8 days
2008	21.1 °C	27.1 °C	16.1 °C	57 mm	12 days	8 days
2007	22.6 °C	29.0 °C	17.2 °C	47 mm	14 days	5 days
2006	21.6 °C	28.5 °C	15.5 °C	10 mm	12 days	3 days
2005	21.7 °C	27.8 °C	16.1 °C	26 mm	12 days	6 days
2004	21.0 °C	27.3 °C	15.4 °C	55 mm	7 days	7 days
2003	20.9 °C	26.0 °C	16.5 °C	168 mm	4 days	12 days
2002	20.4 °C	27.0 °C	14.5 °C	64 mm	6 days	8 days
2001	21.9 °C	27.9 °C	16.4 °C	18 mm	11 days	5 days
2000	21.5 °C	27.8 °C	15.3 °C	40 mm	8 days	7 days
1999	21.9 °C	27.2 °C	17.1 °C	65 mm	12 days	10 days
1998	23.6 °C	30.0 °C	17.6 °C	25 mm	17 days	7 days
1997	19.6 °C	25.7 °C	13.4 °C	57 mm	6 days	8 days
1996	20.3 °C	25.7 °C	15.1 °C	78 mm	2 days	7 days
1995	18.7 °C	23.8 °C	13.7 °C	106 mm	0 days	12 days
1994	20.0 °C	26.1 °C	14.1 °C	41 mm	2 days	5 days
1993	21.3 °C	27.8 °C	15.3 °C	39 mm	6 days	5 days
1992	20.3 °C	25.9 °C	15.0 °C	40 mm	2 days	6 days
1991	20.3 °C	25.7 °C	15.8 °C	95 mm	2 days	13 days
1990	19.7 °C	24.7 °C	15.0 °C	158 mm	1 day	10 days
1989	19.1 °C	24.4 °C	14.3 °C	78 mm	0 days	10 days
1988	20.7 °C	26.3 °C	16.0 °C	61 mm	3 days	10 days
1987	20.7 °C	26.5 °C	15.2 °C	43 mm	1 day	7 days
1986	19.4 °C	25.8 °C	13.7 °C	97 mm	1 day	9 days
1985	18.4 °C	23.6 °C	13.4 °C	40 mm	1 day	6 days
1984	19.5 °C	25.5 °C	13.8 °C	42 mm	0 days	9 days
1983	21.9 °C	27.7 °C	16.6 °C	45 mm	7 days	7 days
1982	20.1 °C	26.7 °C	13.7 °C	28 mm	2 days	4 days
1981	20.4 °C	26.6 °C	15.1 °C	53 mm	3 days	9 days
1980	19.1 °C	25.7 °C	13.0 °C	46 mm	1 day	7 days
1979	18.5 °C	25.2 °C	12.4 °C	37 mm	0 days	4 days
1978	19.7 °C	25.5 °C	14.3 °C	50 mm	1 day	5 days
1977	20.6 °C	26.9 °C	14.6 °C	10 mm	8 days	2 days
1976	19.8 °C	25.1 °C	14.8 °C	52 mm	1 day	7 days
1975	21.5 °C	27.2 °C	16.5 °C	38 mm	3 days	5 days
1974	19.6 °C	25.8 °C	13.8 °C	58 mm	2 days	5 days
1973	19.5 °C	24.7 °C	15.0 °C	103 mm	0 days	13 days
1972	18.7 °C	24.1 °C	14.0 °C	125 mm	0 days	9 days
1971	19.9 °C	25.5 °C	14.7 °C	68 mm	1 day	9 days
1970	19.5 °C	25.6 °C	13.7 °C	30 mm	2 days	5 days
1969	19.6 °C	24.5 °C	14.6 °C	60 mm	3 days	6 days
1968	20.2 °C	25.9 °C	14.9 °C	76 mm	4 days	6 days
1967	18.5 °C	24.3 °C	13.1 °C	40 mm	0 days	8 days
1966	18.4 °C	24.5 °C	12.8 °C	18 mm	0 days	3 days
1965	19.8 °C	25.9 °C	14.3 °C	53 mm	0 days	8 days
1964	19.3 °C	24.0 °C	15.1 °C	146 mm	0 days	10 days
1963	19.8 °C	25.4 °C	14.9 °C	14 mm	1 day	3 days
1962	20.5 °C	26.8 °C	15.0 °C	23 mm	6 days	8 days
1961	19.7 °C	25.1 °C	14.2 °C	95 mm	0 days	7 days
1960	20.4 °C	26.5 °C	15.0 °C	94 mm	8 days	11 days
1959	19.0 °C	24.2 °C	14.2 °C	109 mm	2 days	10 days
1958	20.3 °C	25.8 °C	15.4 °C	98 mm	2 days	10 days
1957	17.6 °C	24.1 °C	11.4 °C	40 mm	0 days	5 days
1956	20.5 °C	26.5 °C	14.5 °C	59 mm	0 days	9 days
1955	19.7 °C	24.4 °C	15.2 °C	276 mm	0 days	10 days
1954	18.9 °C	23.7 °C	14.4 °C	53 mm	0 days	7 days
1953	19.1 °C	23.9 °C	14.5 °C	115 mm	0 days	10 days
1952	19.0 °C	23.7 °C	14.3 °C	132 mm	0 days	10 days
1951	17.2 °C	21.9 °C	12.5 °C	189 mm	0 days	12 days
1950	18.6 °C	23.5 °C	14.0 °C	29 mm	0 days	7 days
1949	18.8 °C	23.2 °C	14.4 °C	64 mm	0 days	7 days
1948	20.2 °C	24.5 °C	16.0 °C	44 mm	1 day	9 days
1947	17.9 °C	22.7 °C	13.6 °C	222 mm	0 days	11 days
1946	19.6 °C	24.7 °C	14.9 °C	145 mm	1 day	5 days
1945	21.0 °C	26.3 °C	16.1 °C	52 mm	0 days	8 days
1944	23.3 °C	29.4 °C	17.5 °C	5 mm	12 days	1 day
1943	19.9 °C	25.6 °C	14.9 °C	41 mm	0 days	7 days
1942	19.8 °C	25.2 °C	14.8 °C	39 mm	1 day	7 days
1941	19.2 °C	24.7 °C	14.0 °C	65 mm	0 days	12 days
1940	19.7 °C	24.4 °C	15.4 °C	27 mm	0 days	8 days

September records

Hottest day

36.3 °C

September 8, 2019 estimate

Nearby station: 35.0 °C on September 1, 2002 measured

Coldest night

4.6 °C

September 28, 1968 estimate

Nearby station: 3.7 °C on September 28, 1968 measured

Wettest day

98 mm

September 1, 1946 estimate

The weather on your birthday in Beijing

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 Beijing in September?

Highs average 27.0 °C and lows 15.6 °C. A typical September brings 7 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Beijing in September?

About 56 mm falls in September, over some 7 days with at least 1 mm. The wettest September was 1955 (276 mm), the driest 2022 (1 mm).

What was the warmest September in Beijing?

1998, with a mean temperature of 23.6 °C. The coldest was 1951 (17.2 °C). The last one, 2025, ranks 11 of 86.