Tianshui climate

Name: Tianshui
Address: CN

Tianshui is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -5.6 °C. August is the wettest month (127 mm) and December the driest (9.3 mm). Figures are 1991–2020 climate normals.

Across a full year Tianshui averages 757 mm of rain, 86 days above 25 °C and 106 days below freezing.

China · population 1,212,791 · 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 -5.6 °C
Driest month December 9 mm
Wettest month August 127 mm
Least cloud December 53 % cloud
Hottest on record July 35 °C
Coldest on record January -18 °C

What to expectTianshui through the year

Tianshui has a clear annual cycle: average daily highs run from 3.4 °C in January to 28 °C in July, a swing of 24 °C in mean temperature across the year.

Counted across a normal year, 86 days a year reach 25 °C, 15 of them reach 30 °C, 106 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in July.

Rain is strongly seasonal. August averages 127 mm against 9 mm in December — 14 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	3.4 °C	11 mm	59 %
February	6.7 °C	16 mm	68 %
March	12.6 °C	33 mm	69 %
April	18.5 °C	49 mm	67 %
May	22.5 °C	78 mm	71 %
June	26.2 °C	93 mm	67 %
July	28.0 °C	124 mm	63 %
August	27.0 °C	127 mm	61 %
September	21.9 °C	118 mm	71 %
October	16.4 °C	73 mm	72 %
November	10.5 °C	26 mm	61 %
December	4.9 °C	9 mm	53 %

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	3.4 °C	-5.6 °C	-1.3 °C	14.0 °C	-17.9 °C	0	0	31
February	6.7 °C	-3.1 °C	1.8 °C	17.7 °C	-17.4 °C	0	0	23
March	12.6 °C	1.4 °C	7.0 °C	24.2 °C	-7.6 °C	0	0	10
April	18.5 °C	6.8 °C	12.6 °C	29.8 °C	-5.2 °C	2	0	1
May	22.5 °C	11.5 °C	17.0 °C	31.8 °C	1.5 °C	9	0	0
June	26.2 °C	15.8 °C	21.0 °C	33.6 °C	8.7 °C	20	3	0
July	28.0 °C	18.6 °C	23.1 °C	35.0 °C	12.0 °C	26	8	0
August	27.0 °C	17.9 °C	22.2 °C	35.0 °C	10.7 °C	24	4	0
September	21.9 °C	13.6 °C	17.6 °C	32.1 °C	3.6 °C	6	0	0
October	16.4 °C	7.5 °C	11.9 °C	27.5 °C	-2.8 °C	0	0	0
November	10.5 °C	1.1 °C	5.8 °C	18.6 °C	-12.6 °C	0	0	12
December	4.9 °C	-4.0 °C	0.1 °C	12.1 °C	-15.6 °C	0	0	29

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	11 mm	4	10 h/day	59 %	66 %	12 km/h
February	16 mm	4	11 h/day	68 %	68 %	14 km/h
March	33 mm	8	12 h/day	69 %	66 %	15 km/h
April	49 mm	8	13 h/day	67 %	64 %	16 km/h
May	78 mm	10	14 h/day	71 %	65 %	16 km/h
June	93 mm	10	14 h/day	67 %	68 %	14 km/h
July	124 mm	12	14 h/day	63 %	72 %	15 km/h
August	127 mm	12	13 h/day	61 %	74 %	15 km/h
September	118 mm	13	12 h/day	71 %	76 %	14 km/h
October	73 mm	12	11 h/day	72 %	75 %	13 km/h
November	26 mm	6	10 h/day	61 %	73 %	13 km/h
December	9 mm	3	9.9 h/day	53 %	66 %	12 km/h

How Tianshui 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
Tianshui	28 °C	-5.6 °C	757 mm	86
Pingliang · China	27 °C	-8.5 °C	715 mm	68
Baoji · China	31 °C	-2.9 °C	733 mm	118
Dingxi · China	25 °C	-11 °C	553 mm	40
Guyuan · China	25 °C	-12 °C	607 mm	39
Hanzhong · China	28 °C	-1.1 °C	1,237 mm	100
Qingyang · China	27 °C	-9.0 °C	642 mm	76

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

QuestionsCommon questions about Tianshui’s climate

When is the best time to visit Tianshui?

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

In July, the warmest month, daily highs average 28 °C. About 15 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average -5.6 °C in January, the coldest month. A normal year has 106 nights below freezing.

Which month is wettest in Tianshui?

August, averaging 127 mm over 12 days with rain. The driest month is December with 9 mm. The year as a whole averages 757 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 Tianshui 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: 34.580°, 105.742° (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.