Jiujiang climate

Name: Jiujiang
Address: CN

Jiujiang is warmest in July, with average highs of 32 °C, and coldest in January, when nights average 1.9 °C. June is the wettest month (336 mm) and December the driest (49 mm). Figures are 1991–2020 climate normals.

Across a full year Jiujiang averages 1,765 mm of rain, 147 days above 25 °C and 16 days below freezing.

China · population 1,164,268 · 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 32 °C
Coldest month January 1.9 °C
Driest month December 49 mm
Wettest month June 336 mm
Least cloud October 51 % cloud
Hottest on record August 40 °C
Coldest on record January -10 °C

What to expectJiujiang through the year

Jiujiang has a clear annual cycle: average daily highs run from 8.4 °C in January to 32 °C in July, a swing of 24 °C in mean temperature across the year.

Counted across a normal year, 147 days a year reach 25 °C, 70 of them reach 30 °C, 16 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in August.

Rain is strongly seasonal. June averages 336 mm against 49 mm in December — 6.8 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	8.4 °C	74 mm	63 %
February	11.0 °C	101 mm	65 %
March	15.4 °C	156 mm	71 %
April	21.6 °C	198 mm	72 %
May	26.1 °C	235 mm	71 %
June	28.8 °C	336 mm	78 %
July	32.1 °C	234 mm	72 %
August	31.6 °C	167 mm	63 %
September	27.8 °C	87 mm	54 %
October	22.8 °C	62 mm	51 %
November	16.8 °C	66 mm	53 %
December	10.7 °C	49 mm	52 %

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	8.4 °C	1.9 °C	5.2 °C	23.0 °C	-10.2 °C	0	0	8
February	11.0 °C	3.8 °C	7.5 °C	25.1 °C	-9.9 °C	0	0	4
March	15.4 °C	8.0 °C	11.7 °C	29.8 °C	-1.4 °C	1	0	0
April	21.6 °C	14.1 °C	17.6 °C	32.5 °C	3.4 °C	7	0	0
May	26.1 °C	19.3 °C	22.5 °C	35.0 °C	10.6 °C	20	4	0
June	28.8 °C	23.0 °C	25.7 °C	34.8 °C	16.3 °C	26	11	0
July	32.1 °C	26.3 °C	29.0 °C	39.4 °C	18.1 °C	30	24	0
August	31.6 °C	25.7 °C	28.4 °C	40.0 °C	18.9 °C	30	22	0
September	27.8 °C	21.4 °C	24.4 °C	36.2 °C	14.0 °C	24	8	0
October	22.8 °C	15.9 °C	19.1 °C	33.6 °C	6.7 °C	9	1	0
November	16.8 °C	9.9 °C	13.2 °C	29.4 °C	-2.7 °C	1	0	0
December	10.7 °C	3.9 °C	7.3 °C	21.1 °C	-9.3 °C	0	0	4

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	74 mm	10	10 h/day	63 %	78 %	12 km/h
February	101 mm	11	11 h/day	65 %	78 %	13 km/h
March	156 mm	15	12 h/day	71 %	79 %	13 km/h
April	198 mm	14	13 h/day	72 %	79 %	13 km/h
May	235 mm	15	14 h/day	71 %	80 %	12 km/h
June	336 mm	17	14 h/day	78 %	83 %	12 km/h
July	234 mm	15	14 h/day	72 %	81 %	12 km/h
August	167 mm	16	13 h/day	63 %	81 %	12 km/h
September	87 mm	9	12 h/day	54 %	79 %	13 km/h
October	62 mm	7	11 h/day	51 %	76 %	12 km/h
November	66 mm	8	11 h/day	53 %	78 %	12 km/h
December	49 mm	7	10 h/day	52 %	76 %	12 km/h

How Jiujiang 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
Jiujiang	32 °C	1.9 °C	1,765 mm	147
Wuxue · China	32 °C	1.5 °C	1,565 mm	150
Pengze · China	32 °C	1.6 °C	1,644 mm	146
Daye · China	32 °C	1.2 °C	1,575 mm	152
Huangshi · China	32 °C	1.4 °C	1,513 mm	153
Nanchang · China	33 °C	2.5 °C	1,665 mm	161
Jingdezhen · China	33 °C	2.0 °C	2,184 mm	164

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

QuestionsCommon questions about Jiujiang’s climate

When is the best time to visit Jiujiang?

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 Jiujiang get?

In July, the warmest month, daily highs average 32 °C. About 70 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 1.9 °C in January, the coldest month. A normal year has 16 nights below freezing.

Which month is wettest in Jiujiang?

June, averaging 336 mm over 17 days with rain. The driest month is December with 49 mm. The year as a whole averages 1,765 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 Jiujiang 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.