Tokyo · Japan

Tokyo in September: every year compared

In September, Tokyo averages highs of 26.6 °C and lows of 20.8 °C, with 180 mm of precipitation. The warmest September was 2023 (26.8 °C), the coldest 1951 (20.7 °C).

Avg. highAvg. high 26.6 °C

Avg. lowAvg. low 20.8 °C

PrecipitationPrecipitation 180 mm

Rainy daysRainy days 14

Day by day through September

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

Normal high and low, day by dayNormal 1991–2020

Every September in Tokyo, ranked

86 months of September since 1940. The last one, 2025, ranks 3 of 86 (+2.6 °C vs normal).

194019832025

2025 · 26.1 °C · +2.6 °C vs normal · rank 3 of 86

Warmest years

1202326.8 °C
2202426.6 °C
3202526.1 °C
4199925.8 °C
5196125.1 °C

Coldest years

1195120.7 °C
2195720.8 °C
3198121.1 °C
4197121.1 °C
5194121.2 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	26.1 °C	29.7 °C	23.2 °C	139 mm	15 days	14 days
2024	26.6 °C	29.9 °C	23.9 °C	74 mm	17 days	14 days
2023	26.8 °C	30.0 °C	24.0 °C	164 mm	18 days	11 days
2022	24.4 °C	27.6 °C	21.7 °C	146 mm	4 days	14 days
2021	22.2 °C	25.2 °C	19.4 °C	175 mm	1 day	15 days
2020	24.5 °C	27.4 °C	22.2 °C	130 mm	10 days	17 days
2019	24.9 °C	28.2 °C	21.9 °C	151 mm	8 days	10 days
2018	23.1 °C	25.9 °C	20.6 °C	273 mm	4 days	18 days
2017	22.7 °C	25.9 °C	19.9 °C	165 mm	1 day	16 days
2016	24.3 °C	26.9 °C	22.1 °C	186 mm	8 days	18 days
2015	22.5 °C	25.4 °C	19.9 °C	298 mm	1 day	12 days
2014	22.2 °C	25.5 °C	19.1 °C	94 mm	0 days	9 days
2013	24.1 °C	27.6 °C	20.7 °C	103 mm	6 days	10 days
2012	25.1 °C	28.3 °C	22.5 °C	170 mm	12 days	18 days
2011	24.1 °C	27.4 °C	21.2 °C	163 mm	10 days	10 days
2010	24.5 °C	27.9 °C	21.7 °C	296 mm	12 days	14 days
2009	21.9 °C	25.2 °C	19.1 °C	57 mm	0 days	9 days
2008	23.4 °C	26.3 °C	20.9 °C	238 mm	3 days	18 days
2007	24.3 °C	27.2 °C	22.0 °C	235 mm	5 days	13 days
2006	22.8 °C	25.8 °C	20.0 °C	180 mm	2 days	11 days
2005	23.9 °C	27.0 °C	21.2 °C	114 mm	8 days	11 days
2004	24.4 °C	27.4 °C	21.7 °C	93 mm	6 days	13 days
2003	23.3 °C	26.6 °C	20.6 °C	175 mm	9 days	9 days
2002	22.4 °C	25.3 °C	20.0 °C	252 mm	5 days	18 days
2001	22.4 °C	25.5 °C	19.8 °C	158 mm	0 days	16 days
2000	24.5 °C	27.6 °C	22.0 °C	147 mm	4 days	17 days
1999	25.8 °C	29.1 °C	22.8 °C	42 mm	11 days	7 days
1998	23.6 °C	26.5 °C	21.3 °C	168 mm	1 day	14 days
1997	22.4 °C	25.4 °C	20.0 °C	112 mm	4 days	18 days
1996	21.8 °C	25.3 °C	18.7 °C	312 mm	2 days	11 days
1995	23.0 °C	26.2 °C	20.1 °C	192 mm	5 days	8 days
1994	24.2 °C	27.1 °C	21.6 °C	353 mm	9 days	21 days
1993	22.0 °C	24.6 °C	19.3 °C	195 mm	0 days	18 days
1992	23.0 °C	26.4 °C	19.5 °C	71 mm	6 days	6 days
1991	23.4 °C	26.0 °C	21.1 °C	264 mm	6 days	18 days
1990	24.2 °C	27.4 °C	21.3 °C	306 mm	9 days	15 days
1989	24.3 °C	27.0 °C	22.0 °C	75 mm	5 days	11 days
1988	22.3 °C	24.5 °C	20.7 °C	308 mm	0 days	21 days
1987	22.4 °C	25.2 °C	20.2 °C	258 mm	1 day	14 days
1986	23.3 °C	26.1 °C	20.9 °C	205 mm	2 days	19 days
1985	22.9 °C	25.7 °C	20.6 °C	129 mm	5 days	14 days
1984	22.7 °C	26.0 °C	19.9 °C	110 mm	5 days	13 days
1983	22.6 °C	25.2 °C	20.3 °C	235 mm	6 days	16 days
1982	21.6 °C	24.4 °C	19.3 °C	304 mm	0 days	16 days
1981	21.1 °C	24.2 °C	18.5 °C	142 mm	1 day	13 days
1980	22.1 °C	24.6 °C	19.9 °C	188 mm	0 days	17 days
1979	22.9 °C	25.9 °C	20.2 °C	194 mm	3 days	16 days
1978	22.0 °C	25.0 °C	19.5 °C	157 mm	2 days	17 days
1977	23.5 °C	26.5 °C	21.1 °C	218 mm	1 day	17 days
1976	21.4 °C	24.3 °C	18.8 °C	198 mm	1 day	18 days
1975	24.6 °C	28.4 °C	21.4 °C	110 mm	12 days	11 days
1974	22.3 °C	24.9 °C	19.9 °C	187 mm	0 days	18 days
1973	22.6 °C	25.7 °C	20.0 °C	250 mm	2 days	12 days
1972	22.7 °C	26.1 °C	19.8 °C	208 mm	1 day	19 days
1971	21.1 °C	23.6 °C	18.8 °C	338 mm	0 days	21 days
1970	23.0 °C	25.9 °C	20.7 °C	101 mm	4 days	18 days
1969	22.3 °C	25.7 °C	19.5 °C	140 mm	2 days	14 days
1968	21.5 °C	24.8 °C	18.6 °C	87 mm	0 days	11 days
1967	22.4 °C	25.3 °C	19.9 °C	248 mm	0 days	17 days
1966	22.1 °C	24.7 °C	19.8 °C	221 mm	3 days	22 days
1965	21.5 °C	24.6 °C	19.0 °C	286 mm	0 days	20 days
1964	22.0 °C	24.9 °C	19.6 °C	239 mm	1 day	19 days
1963	21.3 °C	24.6 °C	18.4 °C	100 mm	0 days	12 days
1962	23.7 °C	27.3 °C	20.6 °C	73 mm	3 days	14 days
1961	25.1 °C	28.7 °C	21.8 °C	70 mm	11 days	12 days
1960	23.1 °C	26.3 °C	20.3 °C	192 mm	1 day	20 days
1959	23.8 °C	26.7 °C	21.4 °C	170 mm	4 days	13 days
1958	22.9 °C	26.2 °C	20.2 °C	486 mm	5 days	16 days
1957	20.8 °C	23.5 °C	18.3 °C	272 mm	1 day	21 days
1956	22.7 °C	25.7 °C	20.0 °C	135 mm	3 days	14 days
1955	22.0 °C	25.2 °C	19.1 °C	137 mm	1 day	12 days
1954	24.3 °C	27.3 °C	21.7 °C	188 mm	1 day	15 days
1953	22.2 °C	25.2 °C	19.5 °C	165 mm	0 days	16 days
1952	22.9 °C	26.0 °C	20.3 °C	94 mm	2 days	22 days
1951	20.7 °C	23.5 °C	18.1 °C	213 mm	0 days	19 days
1950	23.3 °C	26.5 °C	20.7 °C	43 mm	1 day	11 days
1949	22.3 °C	25.4 °C	19.7 °C	171 mm	0 days	16 days
1948	23.0 °C	26.2 °C	20.3 °C	123 mm	2 days	8 days
1947	22.3 °C	25.1 °C	19.8 °C	153 mm	1 day	14 days
1946	22.7 °C	26.3 °C	19.6 °C	64 mm	1 day	15 days
1945	22.3 °C	25.3 °C	19.9 °C	214 mm	2 days	16 days
1944	23.8 °C	27.3 °C	21.0 °C	44 mm	4 days	14 days
1943	23.2 °C	26.5 °C	20.7 °C	53 mm	2 days	14 days
1942	23.6 °C	26.6 °C	21.2 °C	103 mm	2 days	16 days
1941	21.2 °C	24.1 °C	18.9 °C	196 mm	0 days	13 days
1940	21.2 °C	24.3 °C	18.6 °C	195 mm	0 days	14 days

September records

Hottest day

35.7 °C

September 3, 1984 estimate

Nearby station: 38.1 °C on September 3, 1984 measured

Coldest night

11.7 °C

September 23, 2001 estimate

Nearby station: 11.1 °C on September 28, 1951 measured

Wettest day

238 mm

September 26, 1958 estimate

The weather on your birthday in Tokyo

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 Tokyo in September?

Highs average 26.6 °C and lows 20.8 °C. A typical September brings 5 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Tokyo in September?

About 180 mm falls in September, over some 14 days with at least 1 mm. The wettest September was 1958 (486 mm), the driest 1999 (42 mm).

What was the warmest September in Tokyo?

2023, with a mean temperature of 26.8 °C. The coldest was 1951 (20.7 °C). The last one, 2025, ranks 3 of 86.