Changsha climate

Name: Changsha
Address: CN

Changsha is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 11 °C. August is the wettest month (289 mm) and January the driest (33 mm). Figures are 1991–2020 climate normals.

Across a full year Changsha averages 1,748 mm of rain and 245 days above 25 °C.

China · population 688,242 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 31 °C
Coldest month January 11 °C
Driest month January 33 mm
Wettest month August 289 mm
Least cloud October 47 % cloud
Hottest on record July 37 °C
Coldest on record January 1.3 °C

What to expectChangsha through the year

Changsha has a clear annual cycle: average daily highs run from 19 °C in January to 31 °C in July, a swing of 13 °C in mean temperature across the year.

Counted across a normal year, 245 days a year reach 25 °C, 106 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in July.

Rain is strongly seasonal. August averages 289 mm against 33 mm in January — 8.9 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	19.2 °C	33 mm	60 %
February	20.7 °C	43 mm	72 %
March	23.8 °C	88 mm	78 %
April	27.0 °C	160 mm	78 %
May	29.2 °C	267 mm	80 %
June	30.5 °C	288 mm	84 %
July	31.2 °C	232 mm	77 %
August	31.1 °C	289 mm	75 %
September	30.0 °C	206 mm	63 %
October	28.0 °C	73 mm	47 %
November	24.7 °C	35 mm	48 %
December	20.4 °C	34 mm	50 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	19.2 °C	10.7 °C	14.8 °C	28.7 °C	1.3 °C	3	0
February	20.7 °C	12.8 °C	16.5 °C	30.2 °C	3.3 °C	7	0
March	23.8 °C	16.3 °C	19.7 °C	31.4 °C	5.2 °C	14	0
April	27.0 °C	20.4 °C	23.3 °C	33.4 °C	9.6 °C	23	5
May	29.2 °C	23.4 °C	25.9 °C	34.3 °C	15.9 °C	29	13
June	30.5 °C	25.2 °C	27.4 °C	35.6 °C	19.6 °C	30	20
July	31.2 °C	25.5 °C	27.9 °C	37.2 °C	22.4 °C	31	23
August	31.1 °C	25.2 °C	27.7 °C	35.3 °C	23.0 °C	31	23
September	30.0 °C	23.8 °C	26.5 °C	34.2 °C	17.0 °C	29	17
October	28.0 °C	20.4 °C	23.9 °C	33.6 °C	10.9 °C	28	5
November	24.7 °C	16.3 °C	20.3 °C	32.3 °C	6.0 °C	16	1
December	20.4 °C	11.7 °C	15.9 °C	28.7 °C	1.8 °C	4	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	33 mm	5	11 h/day	60 %	71 %	14 km/h
February	43 mm	8	11 h/day	72 %	76 %	14 km/h
March	88 mm	12	12 h/day	78 %	80 %	15 km/h
April	160 mm	15	13 h/day	78 %	83 %	15 km/h
May	267 mm	21	13 h/day	80 %	86 %	14 km/h
June	288 mm	23	14 h/day	84 %	87 %	15 km/h
July	232 mm	21	13 h/day	77 %	86 %	14 km/h
August	289 mm	24	13 h/day	75 %	87 %	12 km/h
September	206 mm	18	12 h/day	63 %	84 %	13 km/h
October	73 mm	7	12 h/day	47 %	75 %	14 km/h
November	35 mm	5	11 h/day	48 %	70 %	14 km/h
December	34 mm	5	11 h/day	50 %	66 %	15 km/h

How Changsha compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Changsha	31 °C	11 °C	1,748 mm	245
Jiangmen · China	32 °C	11 °C	1,798 mm	244
Jing’an · China	30 °C	13 °C	1,767 mm	217
Zhongshan · China	31 °C	12 °C	1,688 mm	239
Zhaoqing · China	31 °C	10 °C	1,814 mm	231
Sanshui · China	32 °C	10 °C	1,981 mm	230
Yunfu · China	31 °C	11 °C	1,646 mm	236

Where Changsha ranks

Ranking	Position	Value
Places with the best weather in Asia in December	19thof 50	96/100
Places with the best weather in the world in December	30thof 50	96/100

Planning a trip? See the best time to visit Changsha.

QuestionsCommon questions about Changsha’s climate

When is the best time to visit Changsha?

That depends on what you want, so the honest answer is a comparison rather than a single month. March, April, November sit closest to 20 °C on average, July is the warmest month and January the driest. The month-by-month table above has the full picture.

How hot does Changsha get?

In July, the warmest month, daily highs average 31 °C. About 106 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 11 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Changsha?

August, averaging 289 mm over 24 days with rain. The driest month is January with 33 mm. The year as a whole averages 1,748 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Changsha rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.