Kunshan climate

Name: Kunshan
Address: CN

Kunshan is warmest in July, with average highs of 32 °C, and coldest in January, when nights average 0.4 °C. June is the wettest month (259 mm) and December the driest (42 mm). Figures are 1991–2020 climate normals.

Across a full year Kunshan averages 1,299 mm of rain, 136 days above 25 °C and 34 days below freezing.

China · population 2,092,496 · 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 0.4 °C
Driest month December 42 mm
Wettest month June 259 mm
Least cloud December 50 % cloud
Hottest on record August 41 °C
Coldest on record January -8.9 °C

What to expectKunshan through the year

Kunshan 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, 136 days a year reach 25 °C, 59 of them reach 30 °C, 34 nights drop below freezing. The warmest reading in the 1991–2020 record is 41 °C, in August.

Rain is strongly seasonal. June averages 259 mm against 42 mm in December — 6.1 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	64 mm	59 %
February	10.5 °C	61 mm	62 %
March	14.5 °C	90 mm	66 %
April	20.3 °C	102 mm	66 %
May	25.1 °C	125 mm	68 %
June	27.9 °C	259 mm	78 %
July	31.6 °C	179 mm	69 %
August	31.2 °C	169 mm	62 %
September	27.2 °C	95 mm	57 %
October	22.7 °C	56 mm	52 %
November	17.2 °C	57 mm	52 %
December	10.8 °C	42 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	8.4 °C	0.4 °C	4.3 °C	21.9 °C	-8.9 °C	0	0	15
February	10.5 °C	2.1 °C	6.0 °C	25.2 °C	-6.0 °C	0	0	9
March	14.5 °C	6.0 °C	9.9 °C	27.8 °C	-4.8 °C	0	0	1
April	20.3 °C	11.3 °C	15.3 °C	32.2 °C	-0.5 °C	4	0	0
May	25.1 °C	16.6 °C	20.4 °C	37.1 °C	6.3 °C	16	3	0
June	27.9 °C	21.0 °C	24.0 °C	36.9 °C	13.6 °C	24	8	0
July	31.6 °C	25.2 °C	28.0 °C	39.7 °C	17.9 °C	30	22	0
August	31.2 °C	25.1 °C	27.7 °C	40.5 °C	18.2 °C	30	21	0
September	27.2 °C	20.8 °C	23.6 °C	36.2 °C	10.9 °C	24	5	0
October	22.7 °C	15.1 °C	18.5 °C	31.5 °C	4.6 °C	6	0	0
November	17.2 °C	9.4 °C	12.9 °C	29.4 °C	-4.7 °C	1	0	1
December	10.8 °C	2.7 °C	6.6 °C	21.2 °C	-7.9 °C	0	0	9

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	64 mm	8	10 h/day	59 %	74 %	16 km/h
February	61 mm	8	11 h/day	62 %	74 %	17 km/h
March	90 mm	10	12 h/day	66 %	74 %	18 km/h
April	102 mm	10	13 h/day	66 %	74 %	18 km/h
May	125 mm	10	14 h/day	68 %	75 %	18 km/h
June	259 mm	14	14 h/day	78 %	81 %	16 km/h
July	179 mm	15	14 h/day	69 %	82 %	16 km/h
August	169 mm	15	13 h/day	62 %	81 %	17 km/h
September	95 mm	10	12 h/day	57 %	79 %	16 km/h
October	56 mm	6	11 h/day	52 %	74 %	16 km/h
November	57 mm	7	11 h/day	52 %	74 %	16 km/h
December	42 mm	6	10 h/day	50 %	72 %	16 km/h

How Kunshan 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
Kunshan	32 °C	0.4 °C	1,299 mm	136
Qingpu · China	32 °C	0.6 °C	1,341 mm	136
Suzhou · China	32 °C	0.8 °C	1,418 mm	135
Changshu · China	32 °C	-0.2 °C	1,283 mm	138
Qibao · China	31 °C	1.1 °C	1,342 mm	129
Songjiang · China	32 °C	0.8 °C	1,371 mm	136
Shanghai · China	31 °C	1.4 °C	1,317 mm	124

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

QuestionsCommon questions about Kunshan’s climate

When is the best time to visit Kunshan?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, September, 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 Kunshan get?

In July, the warmest month, daily highs average 32 °C. About 59 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average 0.4 °C in January, the coldest month. A normal year has 34 nights below freezing.

Which month is wettest in Kunshan?

June, averaging 259 mm over 14 days with rain. The driest month is December with 42 mm. The year as a whole averages 1,299 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 Kunshan 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.