Changsha climate — normals and trends

Q: What is the climate of Changsha?

Changsha has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.4 °C and it receives 1,689 mm of precipitation per year.

Q: What is the hottest day ever recorded in Changsha?

The hottest day measured in Changsha between 1940 and 2025 was 23 August 1990, reaching 38.3 °C.

Q: What is the coldest day in Changsha?

The coldest day measured in Changsha between 1940 and 2025 was 16 January 1963, at -0.1 °C.

Q: Does it snow in Changsha?

Almost never: Changsha sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Changsha warmed?

Yes: Changsha warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Changsha?

The wettest day measured in Changsha between 1940 and 2025 was 9 September 1983, with 233 mm of rain in 24 hours.

Q: What was the windiest day in Changsha?

The windiest day measured in Changsha between 1940 and 2025 was 16 September 2018, with winds reaching 59.1 km/h.

Q: What is the warmest month in Changsha?

The warmest month in Changsha is July (28.4 °C on average); the coldest is January (14.4 °C).

Q: How much does it rain in Changsha?

Changsha receives on average 1,689 mm of precipitation per year, spread over about 173 rainy days.

Q: Is it sunny in Changsha?

Changsha gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.

Changsha (China) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.4 °C and it receives 1,689 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (28.4 °C on average) and the coldest is January (14.4 °C). Rainfall peaks in June.

Changsha averages 0 frost days, 113 hot days (≥ 30 °C) and 173 rainy days per year.

Changsha has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.3 °C (on 23 August 1990) and the coldest -0.1 °C (on 16 January 1963).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

ChangshaGuangdong

coords: 22.38°, 112.68°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthJuneDriest monthJanuary

Mean daily temperature

22.4°C

Average daily high

26.1°C

Average daily low

19.5°C

Annual rainfall

1,689mm

Sunshine / day

8.0h

Mean relative humidity

78%

Average peak wind

14.0km/h

Seasonal range

14.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

113 d/yr

Rainy days (≥ 1 mm)

173 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.7 °C

Average feels-like low

21.5 °C

Average peak gust

33.0 km/h

Tropical nights (≥ 20 °C)

201 d/yr

Solar radiation

14.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.4 °C

since 1940

+0.2 °C per decade · r² = 0.53 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

38.3 °C

23 August 1990

Coldest day

-0.1 °C

16 January 1963

Wettest day

233 mm

9 September 1983

Windiest day

59.1 km/h

16 September 2018

Strongest gust

155.9 km/h

16 September 2018

Hottest feels-like

45.3 °C

25 July 2022

Coldest feels-like

-5.3 °C

11 February 1957

Snowiest day

0.3 cm

24 January 2016

Sunniest day

13.0 h

13 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.5 °C7 July 2025	6.1 °C13 January 2025	23.2 °C	1,730 mm	138	0
2024	36.6 °C5 August 2024	3.4 °C23 January 2024	23.5 °C	1,739 mm	144	0
2023	36.8 °C15 July 2023	5.7 °C22 December 2023	23.4 °C	1,838 mm	128	0
2022	37.2 °C29 July 2022	5.0 °C21 February 2022	22.6 °C	1,964 mm	117	0
2021	35.9 °C27 July 2021	3.4 °C13 January 2021	23.5 °C	1,708 mm	156	0
2020	36.6 °C25 July 2020	5.6 °C31 December 2020	23.3 °C	1,398 mm	127	0
2019	36.2 °C24 August 2019	7.8 °C2 January 2019	23.6 °C	1,678 mm	133	0
2018	35.3 °C30 May 2018	4.0 °C30 January 2018	22.8 °C	1,832 mm	118	0
2017	37.8 °C22 August 2017	6.9 °C18 December 2017	23.0 °C	1,533 mm	125	0
2016	36.9 °C9 July 2016	1.8 °C24 January 2016	22.9 °C	2,168 mm	136	0
2015	36.1 °C8 August 2015	6.9 °C18 December 2015	23.4 °C	1,701 mm	140	0
2014	35.6 °C15 June 2014	3.4 °C12 February 2014	22.7 °C	1,479 mm	143	0
2013	35.3 °C13 July 2013	6.0 °C30 December 2013	22.6 °C	1,950 mm	117	0
2012	36.2 °C2 August 2012	4.6 °C26 January 2012	22.4 °C	2,004 mm	119	0
2011	36.4 °C21 June 2011	4.4 °C12 January 2011	22.3 °C	1,194 mm	128	0
2010	35.8 °C5 July 2010	3.3 °C18 December 2010	22.7 °C	1,947 mm	110	0
2009	35.8 °C2 August 2009	3.8 °C11 January 2009	23.0 °C	1,714 mm	126	0
2008	36.8 °C28 July 2008	4.6 °C3 February 2008	22.3 °C	1,934 mm	119	0
2007	35.4 °C14 July 2007	5.7 °C30 January 2007	23.2 °C	1,289 mm	138	0
2006	35.7 °C24 July 2006	6.0 °C7 January 2006	23.1 °C	1,633 mm	133	0
2005	37.7 °C19 July 2005	3.5 °C1 January 2005	22.7 °C	1,579 mm	135	0
2004	37.2 °C1 July 2004	4.9 °C22 January 2004	22.9 °C	1,162 mm	139	0
2003	36.1 °C23 July 2003	5.8 °C6 January 2003	23.2 °C	1,418 mm	133	0
2002	35.2 °C14 July 2002	4.7 °C27 December 2002	23.2 °C	1,820 mm	127	0
2001	35.5 °C8 August 2001	5.5 °C24 December 2001	23.0 °C	1,814 mm	134	0
2000	35.4 °C5 June 2000	5.2 °C27 January 2000	22.8 °C	1,698 mm	132	0
1999	35.7 °C6 June 1999	2.6 °C23 December 1999	23.2 °C	1,637 mm	139	0
1998	36.6 °C2 August 1998	5.9 °C26 January 1998	23.5 °C	1,842 mm	140	0
1997	36.0 °C30 August 1997	6.2 °C12 January 1997	22.7 °C	2,235 mm	122	0
1996	35.6 °C26 July 1996	3.0 °C21 February 1996	22.4 °C	1,526 mm	129	0
1995	35.2 °C30 July 1995	4.5 °C7 January 1995	22.2 °C	1,633 mm	111	0
1994	35.7 °C11 July 1994	5.7 °C21 January 1994	22.8 °C	1,614 mm	109	0
1993	35.3 °C29 July 1993	3.4 °C17 January 1993	22.4 °C	1,838 mm	108	0
1992	35.3 °C7 August 1992	5.2 °C15 January 1992	22.1 °C	1,982 mm	114	0
1991	36.1 °C5 June 1991	2.0 °C29 December 1991	23.2 °C	1,361 mm	142	0
1990	38.3 °C23 August 1990	4.5 °C1 February 1990	22.8 °C	1,542 mm	116	0
1989	36.7 °C16 July 1989	4.9 °C14 January 1989	22.4 °C	1,471 mm	122	0
1988	36.1 °C18 July 1988	6.4 °C12 December 1988	22.0 °C	1,671 mm	118	0
1987	36.2 °C13 July 1987	5.2 °C7 December 1987	23.0 °C	1,706 mm	109	0
1986	36.1 °C31 July 1986	3.5 °C1 March 1986	22.3 °C	1,775 mm	118	0
1985	34.5 °C22 June 1985	4.2 °C17 December 1985	21.9 °C	1,930 mm	118	0
1984	34.9 °C26 July 1984	4.2 °C7 February 1984	21.7 °C	1,520 mm	98	0
1983	36.7 °C12 July 1983	3.8 °C30 December 1983	22.0 °C	2,317 mm	131	0
1982	37.5 °C29 July 1982	2.7 °C28 December 1982	22.3 °C	1,847 mm	116	0
1981	35.5 °C21 June 1981	5.1 °C14 January 1981	22.5 °C	1,876 mm	96	0
1980	37.1 °C10 July 1980	2.9 °C8 February 1980	22.6 °C	1,412 mm	117	0
1979	36.0 °C29 July 1979	4.0 °C1 February 1979	22.2 °C	2,006 mm	111	0
1978	35.1 °C15 July 1978	3.6 °C22 January 1978	22.2 °C	2,155 mm	106	0
1977	34.7 °C25 July 1977	2.1 °C31 January 1977	22.5 °C	1,377 mm	132	0
1976	35.1 °C25 May 1976	2.6 °C28 December 1976	21.8 °C	1,978 mm	99	0
1975	34.2 °C6 July 1975	2.8 °C14 December 1975	22.3 °C	2,268 mm	111	0
1974	35.0 °C21 August 1974	2.9 °C2 January 1974	22.1 °C	1,935 mm	123	0
1973	34.2 °C17 May 1973	4.8 °C26 December 1973	22.7 °C	2,653 mm	101	0
1972	35.1 °C22 July 1972	3.2 °C9 February 1972	22.1 °C	2,404 mm	107	0
1971	34.8 °C21 July 1971	3.7 °C6 January 1971	22.1 °C	1,916 mm	110	0
1970	34.9 °C1 August 1970	3.8 °C16 January 1970	22.0 °C	1,966 mm	115	0
1969	34.9 °C27 July 1969	2.0 °C6 February 1969	21.8 °C	1,681 mm	113	0
1968	35.5 °C25 July 1968	5.0 °C7 February 1968	22.3 °C	1,848 mm	103	0
1967	34.9 °C18 July 1967	1.9 °C17 January 1967	21.9 °C	1,726 mm	112	0
1966	33.2 °C17 August 1966	4.6 °C1 January 1966	22.4 °C	1,428 mm	94	0
1965	33.4 °C14 July 1965	3.8 °C31 December 1965	21.6 °C	2,251 mm	52	0
1964	35.7 °C30 July 1964	4.6 °C21 February 1964	22.3 °C	1,662 mm	117	0
1963	36.7 °C31 May 1963	-0.1 °C16 January 1963	22.3 °C	1,249 mm	133	1
1962	35.1 °C1 August 1962	3.1 °C28 January 1962	22.0 °C	1,422 mm	117	0
1961	35.0 °C23 August 1961	1.8 °C19 January 1961	22.5 °C	2,154 mm	103	0
1960	36.0 °C21 August 1960	3.6 °C25 January 1960	22.6 °C	1,653 mm	100	0
1959	35.1 °C29 August 1959	5.6 °C18 January 1959	22.3 °C	1,730 mm	99	0
1958	34.9 °C16 July 1958	2.8 °C17 January 1958	22.1 °C	1,371 mm	111	0
1957	35.5 °C14 August 1957	0.9 °C11 February 1957	21.8 °C	1,915 mm	98	0
1956	35.4 °C2 August 1956	2.6 °C10 January 1956	22.2 °C	1,058 mm	130	0
1955	33.0 °C3 May 1955	0.1 °C12 January 1955	22.0 °C	1,043 mm	100	0
1954	34.6 °C29 July 1954	4.1 °C17 December 1954	22.3 °C	1,136 mm	101	0
1953	33.1 °C17 August 1953	4.8 °C12 December 1953	22.2 °C	1,378 mm	92	0
1952	32.2 °C29 July 1952	4.1 °C19 February 1952	22.5 °C	1,467 mm	86	0
1951	32.8 °C13 August 1951	3.3 °C14 January 1951	21.9 °C	1,750 mm	66	0
1950	32.5 °C17 July 1950	4.9 °C10 December 1950	22.0 °C	1,723 mm	75	0
1949	36.7 °C14 June 1949	3.0 °C10 January 1949	22.7 °C	1,190 mm	113	0
1948	33.3 °C6 July 1948	4.1 °C26 January 1948	22.3 °C	1,375 mm	89	0
1947	32.8 °C29 August 1947	4.6 °C20 December 1947	21.6 °C	1,532 mm	55	0
1946	37.4 °C17 July 1946	4.8 °C7 January 1946	22.7 °C	901 mm	125	0
1945	32.2 °C31 July 1945	4.4 °C17 January 1945	20.9 °C	1,812 mm	65	0
1944	33.7 °C8 April 1944	3.1 °C20 December 1944	21.8 °C	1,748 mm	55	0
1943	36.2 °C26 May 1943	4.1 °C12 January 1943	22.0 °C	845 mm	112	0
1942	32.1 °C6 August 1942	4.7 °C14 December 1942	21.6 °C	1,614 mm	75	0
1941	32.0 °C9 August 1941	5.1 °C29 December 1941	21.6 °C	1,807 mm	63	0
1940	32.8 °C31 August 1940	3.0 °C25 January 1940	21.5 °C	1,458 mm	65	0

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

27.2 °C

+1.1 °C

Hot days (≥ 30 °C)

138 d/yr

+25

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1731 mm

+42 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	21.2 °C	+2.6 °C	4 mm	-25 mm
Feb	20.4 °C	+0.9 °C	13 mm	-36 mm
Mar	23.4 °C	+0.6 °C	54 mm	-26 mm
Apr	28.2 °C	+1.8 °C	59 mm	-91 mm
May	29.6 °C	+0.2 °C	234 mm	-22 mm
Jun	31.3 °C	+0.5 °C	290 mm	+12 mm
Jul	32.8 °C	+0.9 °C	309 mm	+96 mm
Aug	31.6 °C	+0.1 °C	303 mm	+44 mm
Sep	31.7 °C	+1.3 °C	356 mm	+139 mm
Oct	29.1 °C	+1.3 °C	81 mm	-4 mm
Nov	24.0 °C	-0.2 °C	13 mm	-30 mm
Dec	23.0 °C	+2.9 °C	16 mm	-15 mm

The year's extremes

Hottest day

35.5 °C

7 Jul 2025

Coldest day

6.1 °C

13 Jan 2025

Wettest day

102.0 mm

24 Sep 2025

Windiest day

52.9 km/h

24 Sep 2025

Strongest gust

134.3 km/h

24 Sep 2025

Hottest feels-like

44.9 °C

26 Jul 2025

Coldest feels-like

2.6 °C

13 Jan 2025

Sunniest day

13.0 h

12 May 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Changsha?

Changsha has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.4 °C and it receives 1,689 mm of precipitation per year.

What is the hottest day ever recorded in Changsha?

The hottest day measured in Changsha between 1940 and 2025 was 23 August 1990, reaching 38.3 °C.

What is the coldest day in Changsha?

The coldest day measured in Changsha between 1940 and 2025 was 16 January 1963, at -0.1 °C.

Does it snow in Changsha?

Almost never: Changsha sees virtually no snow, with about 0 frost days per year.

Has the climate of Changsha warmed?

Yes: Changsha warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Changsha?

The wettest day measured in Changsha between 1940 and 2025 was 9 September 1983, with 233 mm of rain in 24 hours.

What was the windiest day in Changsha?

The windiest day measured in Changsha between 1940 and 2025 was 16 September 2018, with winds reaching 59.1 km/h.

What is the warmest month in Changsha?

The warmest month in Changsha is July (28.4 °C on average); the coldest is January (14.4 °C).

How much does it rain in Changsha?

Changsha receives on average 1,689 mm of precipitation per year, spread over about 173 rainy days.

Is it sunny in Changsha?

Changsha gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.

What is the biggest single-day snowfall in Changsha?

The heaviest 24-hour snowfall measured in Changsha between 1940 and 2025 was 24 January 2016, with 0.3 cm.

Are there tropical nights in Changsha?

Yes: Changsha has on average 201 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Changsha?

In Changsha, between 1940 and 2025, the highest apparent temperature reached 45.3 °C on 25 July 2022, and the lowest was -5.3 °C on 11 February 1957.

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