Guiyang climate

Name: Guiyang
Address: CN

Guiyang is warmest in August, with average highs of 27 °C, and coldest in January, when nights average 1.4 °C. June is the wettest month (246 mm) and December the driest (49 mm). Figures are 1991–2020 climate normals.

Across a full year Guiyang averages 1,454 mm of rain, 100 days above 25 °C and 24 days below freezing.

China · population 3,037,159 · 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 August 27 °C
Coldest month January 1.4 °C
Driest month December 49 mm
Wettest month June 246 mm
Least cloud September 68 % cloud
Hottest on record May 33 °C
Coldest on record December -7.8 °C

What to expectGuiyang through the year

Guiyang has a clear annual cycle: average daily highs run from 8.0 °C in January to 27 °C in August, a swing of 18 °C in mean temperature across the year.

Counted across a normal year, 100 days a year reach 25 °C, 4 of them reach 30 °C, 24 nights drop below freezing. The warmest reading in the 1991–2020 record is 33 °C, in May.

Rain is strongly seasonal. June averages 246 mm against 49 mm in December — 5.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	8.0 °C	71 mm	84 %
February	11.1 °C	63 mm	83 %
March	15.1 °C	99 mm	82 %
April	19.8 °C	137 mm	79 %
May	22.8 °C	198 mm	79 %
June	25.1 °C	246 mm	86 %
July	26.7 °C	178 mm	81 %
August	26.8 °C	130 mm	72 %
September	24.0 °C	108 mm	68 %
October	19.0 °C	111 mm	77 %
November	14.9 °C	64 mm	73 %
December	9.8 °C	49 mm	78 %

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	8.0 °C	1.4 °C	4.7 °C	20.1 °C	-7.7 °C	0	0	11
February	11.1 °C	3.5 °C	7.2 °C	29.2 °C	-7.1 °C	0	0	6
March	15.1 °C	7.0 °C	11.0 °C	28.9 °C	-4.2 °C	1	0	1
April	19.8 °C	11.8 °C	15.6 °C	30.6 °C	1.3 °C	5	0	0
May	22.8 °C	15.6 °C	18.9 °C	32.8 °C	7.1 °C	10	0	0
June	25.1 °C	18.6 °C	21.5 °C	30.3 °C	10.8 °C	18	0	0
July	26.7 °C	20.2 °C	23.0 °C	31.4 °C	14.4 °C	25	1	0
August	26.8 °C	19.6 °C	22.8 °C	32.7 °C	12.1 °C	25	2	0
September	24.0 °C	16.8 °C	20.2 °C	31.7 °C	8.2 °C	13	1	0
October	19.0 °C	12.6 °C	15.6 °C	29.1 °C	3.3 °C	2	0	0
November	14.9 °C	7.9 °C	11.3 °C	24.2 °C	-1.4 °C	0	0	0
December	9.8 °C	2.9 °C	6.3 °C	21.4 °C	-7.8 °C	0	0	5

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	71 mm	15	11 h/day	84 %	84 %	15 km/h
February	63 mm	13	11 h/day	83 %	83 %	17 km/h
March	99 mm	17	12 h/day	82 %	83 %	18 km/h
April	137 mm	18	13 h/day	79 %	82 %	18 km/h
May	198 mm	19	13 h/day	79 %	82 %	18 km/h
June	246 mm	20	14 h/day	86 %	85 %	17 km/h
July	178 mm	18	14 h/day	81 %	84 %	18 km/h
August	130 mm	16	13 h/day	72 %	82 %	16 km/h
September	108 mm	12	12 h/day	68 %	80 %	16 km/h
October	111 mm	14	12 h/day	77 %	82 %	15 km/h
November	64 mm	11	11 h/day	73 %	82 %	16 km/h
December	49 mm	11	10 h/day	78 %	82 %	15 km/h

How Guiyang 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
Guiyang	27 °C	1.4 °C	1,454 mm	100
Anshun · China	25 °C	1.4 °C	1,611 mm	70
Duyun · China	28 °C	2.1 °C	1,797 mm	120
Zunyi · China	28 °C	1.2 °C	1,638 mm	108
Kaili · China	28 °C	1.5 °C	1,438 mm	124
Bijie · China	26 °C	-0.1 °C	1,334 mm	72
Liupanshui · China	24 °C	0.9 °C	1,500 mm	40

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

QuestionsCommon questions about Guiyang’s climate

When is the best time to visit Guiyang?

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

How hot does Guiyang get?

In August, the warmest month, daily highs average 27 °C. About 4 days a year pass 30 °C. The highest value in the 1991–2020 record is 33 °C.

How cold does it get in winter?

Nights average 1.4 °C in January, the coldest month. A normal year has 24 nights below freezing.

Which month is wettest in Guiyang?

June, averaging 246 mm over 20 days with rain. The driest month is December with 49 mm. The year as a whole averages 1,454 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 Guiyang 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: 26.583°, 106.717° (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.