Datong climate

Name: Datong
Address: CN

Datong is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -16 °C. July is the wettest month (95 mm) and December the driest (2.7 mm). Figures are 1991–2020 climate normals.

Across a full year Datong averages 442 mm of rain, 86 days above 25 °C and 173 days below freezing.

China · population 1,850,000 · 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 -16 °C
Driest month December 3 mm
Wettest month July 95 mm
Least cloud December 26 % cloud
Hottest on record July 39 °C
Coldest on record January -32 °C

What to expectDatong through the year

Datong has a clear annual cycle: average daily highs run from -2.9 °C in January to 28 °C in July, a swing of 32 °C in mean temperature across the year.

Counted across a normal year, 86 days a year reach 25 °C, 20 of them reach 30 °C, 173 nights drop below freezing. The warmest reading in the 1991–2020 record is 39 °C, in July.

Rain is strongly seasonal. July averages 95 mm against 3 mm in December — 35 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	-2.9 °C	3 mm	30 %
February	1.7 °C	5 mm	36 %
March	8.6 °C	15 mm	41 %
April	16.2 °C	27 mm	44 %
May	22.5 °C	39 mm	48 %
June	26.8 °C	59 mm	54 %
July	28.2 °C	95 mm	54 %
August	26.3 °C	85 mm	50 %
September	21.3 °C	68 mm	46 %
October	14.3 °C	30 mm	36 %
November	5.4 °C	13 mm	29 %
December	-1.5 °C	3 mm	26 %

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	-2.9 °C	-16.3 °C	-9.7 °C	10.1 °C	-32.2 °C	0	0	31
February	1.7 °C	-11.6 °C	-5.1 °C	16.8 °C	-30.4 °C	0	0	28
March	8.6 °C	-4.7 °C	1.5 °C	23.9 °C	-22.9 °C	0	0	28
April	16.2 °C	0.8 °C	8.4 °C	33.1 °C	-21.4 °C	2	0	13
May	22.5 °C	8.1 °C	15.4 °C	34.7 °C	-5.3 °C	10	1	1
June	26.8 °C	13.9 °C	20.4 °C	38.5 °C	3.0 °C	22	6	0
July	28.2 °C	17.0 °C	22.6 °C	39.1 °C	8.7 °C	26	9	0
August	26.3 °C	15.4 °C	20.8 °C	34.9 °C	5.7 °C	21	3	0
September	21.3 °C	9.7 °C	15.4 °C	32.5 °C	-1.0 °C	5	0	0
October	14.3 °C	1.7 °C	7.7 °C	25.5 °C	-9.0 °C	0	0	11
November	5.4 °C	-5.8 °C	-0.7 °C	18.9 °C	-24.6 °C	0	0	28
December	-1.5 °C	-13.0 °C	-7.5 °C	11.2 °C	-32.1 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	3 mm	1	9.6 h/day	30 %	47 %	15 km/h
February	5 mm	2	11 h/day	36 %	41 %	17 km/h
March	15 mm	3	12 h/day	41 %	40 %	20 km/h
April	27 mm	4	13 h/day	44 %	41 %	21 km/h
May	39 mm	6	14 h/day	48 %	42 %	20 km/h
June	59 mm	9	15 h/day	54 %	50 %	17 km/h
July	95 mm	12	15 h/day	54 %	61 %	14 km/h
August	85 mm	10	14 h/day	50 %	63 %	13 km/h
September	68 mm	9	12 h/day	46 %	60 %	14 km/h
October	30 mm	5	11 h/day	36 %	57 %	16 km/h
November	13 mm	3	10.0 h/day	29 %	53 %	17 km/h
December	3 mm	1	9.3 h/day	26 %	46 %	16 km/h

How Datong 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
Datong	28 °C	-16 °C	442 mm	86
Ulanqab · China	26 °C	-19 °C	408 mm	56
Shuozhou · China	27 °C	-15 °C	539 mm	77
Zhangjiakou · China	29 °C	-16 °C	420 mm	100
Hohhot · China	28 °C	-18 °C	404 mm	80
Xuanhua · China	30 °C	-14 °C	421 mm	110
Xinzhou · China	28 °C	-12 °C	474 mm	97

Where Datong ranks

Ranking	Position	Value
Places with the best weather in Asia in August	38thof 50	85/100

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

QuestionsCommon questions about Datong’s climate

When is the best time to visit Datong?

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 December the driest. The month-by-month table above has the full picture.

How hot does Datong get?

In July, the warmest month, daily highs average 28 °C. About 20 days a year pass 30 °C. The highest value in the 1991–2020 record is 39 °C.

How cold does it get in winter?

Nights average -16 °C in January, the coldest month. A normal year has 173 nights below freezing.

Which month is wettest in Datong?

July, averaging 95 mm over 12 days with rain. The driest month is December with 3 mm. The year as a whole averages 442 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 Datong 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.