Jiuquan climate

Name: Jiuquan
Address: CN

Jiuquan is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -12 °C. August is the wettest month (21 mm) and February the driest (2.4 mm). Figures are 1991–2020 climate normals.

Across a full year Jiuquan averages 117 mm of rain, 79 days above 25 °C and 163 days below freezing.

China · population 428,346 · 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 28 °C
Coldest month January -12 °C
Driest month February 2 mm
Wettest month August 21 mm
Least cloud October 31 % cloud
Hottest on record July 36 °C
Coldest on record December -25 °C

What to expectJiuquan through the year

Jiuquan has a clear annual cycle: average daily highs run from -3.1 °C in January to 28 °C in July, a swing of 30 °C in mean temperature across the year.

Counted across a normal year, 79 days a year reach 25 °C, 19 of them reach 30 °C, 163 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in July.

Rain is spread fairly evenly through the year, from 2 mm in February to 21 mm in August. There is no dry season to aim for.

Month by month

Month	Avg high	Rainfall	Cloud
January	-3.1 °C	3 mm	41 %
February	1.5 °C	2 mm	45 %
March	8.3 °C	7 mm	47 %
April	16.3 °C	7 mm	47 %
May	21.7 °C	13 mm	50 %
June	26.2 °C	15 mm	51 %
July	28.0 °C	20 mm	43 %
August	26.5 °C	21 mm	40 %
September	21.2 °C	15 mm	37 %
October	13.8 °C	5 mm	31 %
November	5.3 °C	5 mm	34 %
December	-1.7 °C	3 mm	38 %

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	-3.1 °C	-12.3 °C	-7.7 °C	10.9 °C	-22.0 °C	0	0	31
February	1.5 °C	-8.5 °C	-3.5 °C	12.2 °C	-20.0 °C	0	0	28
March	8.3 °C	-3.9 °C	2.4 °C	22.8 °C	-15.7 °C	0	0	27
April	16.3 °C	2.4 °C	9.8 °C	30.1 °C	-12.0 °C	1	0	9
May	21.7 °C	8.8 °C	15.7 °C	34.4 °C	-3.1 °C	8	0	0
June	26.2 °C	14.3 °C	20.6 °C	33.4 °C	5.5 °C	20	4	0
July	28.0 °C	16.8 °C	22.6 °C	36.3 °C	10.4 °C	25	9	0
August	26.5 °C	15.3 °C	21.0 °C	36.0 °C	7.8 °C	21	5	0
September	21.2 °C	9.8 °C	15.7 °C	31.1 °C	-0.9 °C	5	0	0
October	13.8 °C	2.2 °C	8.1 °C	24.6 °C	-13.1 °C	0	0	8
November	5.3 °C	-4.8 °C	0.0 °C	16.4 °C	-17.8 °C	0	0	29
December	-1.7 °C	-10.5 °C	-6.2 °C	9.5 °C	-24.8 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	3 mm	1	9.7 h/day	41 %	47 %	11 km/h
February	2 mm	1	11 h/day	45 %	41 %	13 km/h
March	7 mm	2	12 h/day	47 %	38 %	15 km/h
April	7 mm	2	13 h/day	47 %	33 %	18 km/h
May	13 mm	3	14 h/day	50 %	33 %	18 km/h
June	15 mm	3	15 h/day	51 %	37 %	18 km/h
July	20 mm	4	15 h/day	43 %	44 %	17 km/h
August	21 mm	4	14 h/day	40 %	46 %	16 km/h
September	15 mm	3	12 h/day	37 %	46 %	14 km/h
October	5 mm	1	11 h/day	31 %	44 %	13 km/h
November	5 mm	1	10 h/day	34 %	44 %	12 km/h
December	3 mm	1	9.4 h/day	38 %	46 %	11 km/h

How Jiuquan 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
Jiuquan	28 °C	-12 °C	117 mm	79
Zhangye · China	29 °C	-14 °C	166 mm	91
Dunhuang · China	34 °C	-11 °C	36 mm	144
Jinchang · China	29 °C	-13 °C	181 mm	93
Wuwei · China	28 °C	-12 °C	204 mm	86
Xining · China	23 °C	-13 °C	485 mm	23
Nianbo · China	25 °C	-14 °C	523 mm	39

Where Jiuquan ranks

Ranking	Position	Value
Places with the best weather in Asia in September	7th of 50	96/100
Places with the best weather in Asia in August	8th of 50	92/100
Places with the best weather in Asia in July	12th of 50	87/100
Places with the best weather in Asia in June	16th of 50	91/100
Places with the best weather in the world in September	19th of 50	96/100
The driest places in Asia year-round	47th of 50	9.8 mm

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

QuestionsCommon questions about Jiuquan’s climate

When is the best time to visit Jiuquan?

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

How hot does Jiuquan get?

In July, the warmest month, daily highs average 28 °C. About 19 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average -12 °C in January, the coldest month. A normal year has 163 nights below freezing.

Which month is wettest in Jiuquan?

August, averaging 21 mm over 4 days with rain. The driest month is February with 2 mm. The year as a whole averages 117 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 Jiuquan 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
Data point: 39.743°, 98.517° (the coordinates the reanalysis values are taken for)
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.