Nanchang climate

Name: Nanchang
Address: CN

Nanchang is warmest in July, with average highs of 33 °C, and coldest in January, when nights average 2.5 °C. June is the wettest month (340 mm) and December the driest (48 mm). Figures are 1991–2020 climate normals.

Across a full year Nanchang averages 1,665 mm of rain, 161 days above 25 °C and 13 days below freezing.

China · population 2,357,839 · 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 33 °C
Coldest month January 2.5 °C
Driest month December 48 mm
Wettest month June 340 mm
Least cloud October 47 % cloud
Hottest on record August 40 °C
Coldest on record December -8.9 °C

What to expectNanchang through the year

Nanchang has a clear annual cycle: average daily highs run from 9.7 °C in January to 33 °C in July, a swing of 23 °C in mean temperature across the year.

Counted across a normal year, 161 days a year reach 25 °C, 85 of them reach 30 °C, 13 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in August.

Rain is strongly seasonal. June averages 340 mm against 48 mm in December — 7.2 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	9.7 °C	67 mm	62 %
February	12.4 °C	93 mm	65 %
March	16.4 °C	169 mm	72 %
April	22.6 °C	196 mm	72 %
May	26.9 °C	232 mm	71 %
June	29.3 °C	340 mm	80 %
July	32.8 °C	182 mm	71 %
August	32.4 °C	137 mm	62 %
September	28.9 °C	71 mm	52 %
October	24.1 °C	54 mm	47 %
November	18.0 °C	77 mm	51 %
December	12.0 °C	48 mm	50 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	9.7 °C	2.5 °C	6.1 °C	25.7 °C	-5.8 °C	0	0	7
February	12.4 °C	4.7 °C	8.5 °C	26.9 °C	-3.8 °C	0	0	3
March	16.4 °C	8.8 °C	12.5 °C	31.4 °C	-2.2 °C	2	0	0
April	22.6 °C	14.7 °C	18.4 °C	32.5 °C	3.4 °C	10	1	0
May	26.9 °C	19.7 °C	23.1 °C	34.2 °C	10.3 °C	22	6	0
June	29.3 °C	23.3 °C	26.0 °C	35.2 °C	17.2 °C	27	13	0
July	32.8 °C	26.4 °C	29.3 °C	39.1 °C	19.1 °C	30	26	0
August	32.4 °C	25.9 °C	28.8 °C	39.6 °C	19.1 °C	30	25	0
September	28.9 °C	22.0 °C	25.2 °C	37.0 °C	13.3 °C	26	12	0
October	24.1 °C	16.5 °C	20.0 °C	35.8 °C	7.6 °C	12	2	0
November	18.0 °C	10.4 °C	14.0 °C	31.3 °C	-0.6 °C	2	0	0
December	12.0 °C	4.4 °C	8.0 °C	25.6 °C	-8.9 °C	0	0	3

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	67 mm	10	11 h/day	62 %	76 %	13 km/h
February	93 mm	11	11 h/day	65 %	76 %	14 km/h
March	169 mm	16	12 h/day	72 %	78 %	14 km/h
April	196 mm	16	13 h/day	72 %	79 %	14 km/h
May	232 mm	16	14 h/day	71 %	79 %	13 km/h
June	340 mm	18	14 h/day	80 %	83 %	13 km/h
July	182 mm	13	14 h/day	71 %	78 %	14 km/h
August	137 mm	13	13 h/day	62 %	78 %	13 km/h
September	71 mm	9	12 h/day	52 %	76 %	14 km/h
October	54 mm	6	12 h/day	47 %	72 %	14 km/h
November	77 mm	8	11 h/day	51 %	75 %	13 km/h
December	48 mm	7	10 h/day	50 %	74 %	13 km/h

How Nanchang 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
Nanchang	33 °C	2.5 °C	1,665 mm	161
Fuzhou · China	33 °C	3.0 °C	1,865 mm	172
Jiujiang · China	32 °C	1.9 °C	1,765 mm	147
Yingtan · China	33 °C	3.2 °C	1,966 mm	174
Xinyu · China	33 °C	3.1 °C	1,839 mm	166
Wuxue · China	32 °C	1.5 °C	1,565 mm	150
Jingdezhen · China	33 °C	2.0 °C	2,184 mm	164

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

QuestionsCommon questions about Nanchang’s climate

When is the best time to visit Nanchang?

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

How hot does Nanchang get?

In July, the warmest month, daily highs average 33 °C. About 85 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average 2.5 °C in January, the coldest month. A normal year has 13 nights below freezing.

Which month is wettest in Nanchang?

June, averaging 340 mm over 18 days with rain. The driest month is December with 48 mm. The year as a whole averages 1,665 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 Nanchang 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.