Guangzhou climate

Name: Guangzhou
Address: CN

Guangzhou is warmest in July, with average highs of 32 °C, and coldest in January, when nights average 10 °C. June is the wettest month (341 mm) and November the driest (35 mm). Figures are 1991–2020 climate normals.

Across a full year Guangzhou averages 1,888 mm of rain and 240 days above 25 °C.

China · population 16,096,724 · 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 10 °C
Driest month November 35 mm
Wettest month June 341 mm
Least cloud October 44 % cloud
Hottest on record July 39 °C
Coldest on record December 1.1 °C

What to expectGuangzhou through the year

Guangzhou has a clear annual cycle: average daily highs run from 19 °C in January to 32 °C in July, a swing of 14 °C in mean temperature across the year.

Counted across a normal year, 240 days a year reach 25 °C, 116 of them reach 30 °C. The warmest reading in the 1991–2020 record is 39 °C, in July.

Rain is strongly seasonal. June averages 341 mm against 35 mm in November — 9.8 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	18.6 °C	41 mm	59 %
February	20.2 °C	57 mm	70 %
March	23.2 °C	121 mm	78 %
April	26.7 °C	202 mm	77 %
May	29.2 °C	298 mm	78 %
June	30.8 °C	341 mm	84 %
July	31.7 °C	235 mm	76 %
August	31.6 °C	281 mm	72 %
September	30.5 °C	181 mm	59 %
October	28.3 °C	58 mm	44 %
November	24.7 °C	35 mm	46 %
December	20.0 °C	38 mm	48 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	18.6 °C	10.3 °C	14.3 °C	28.5 °C	1.9 °C	2	0
February	20.2 °C	12.4 °C	16.1 °C	31.4 °C	2.3 °C	6	0
March	23.2 °C	15.8 °C	19.2 °C	31.1 °C	5.8 °C	12	0
April	26.7 °C	20.0 °C	23.0 °C	33.3 °C	9.2 °C	22	5
May	29.2 °C	23.2 °C	25.7 °C	35.7 °C	17.0 °C	29	13
June	30.8 °C	25.2 °C	27.5 °C	35.8 °C	19.7 °C	30	21
July	31.7 °C	25.8 °C	28.3 °C	38.6 °C	21.1 °C	31	25
August	31.6 °C	25.6 °C	28.1 °C	35.9 °C	23.6 °C	31	25
September	30.5 °C	24.2 °C	26.9 °C	35.5 °C	16.8 °C	29	20
October	28.3 °C	20.6 °C	24.1 °C	34.1 °C	11.4 °C	28	7
November	24.7 °C	16.2 °C	20.1 °C	31.8 °C	6.2 °C	16	1
December	20.0 °C	11.3 °C	15.5 °C	28.2 °C	1.1 °C	3	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	41 mm	6	11 h/day	59 %	69 %	16 km/h
February	57 mm	9	11 h/day	70 %	74 %	16 km/h
March	121 mm	14	12 h/day	78 %	79 %	17 km/h
April	202 mm	16	13 h/day	77 %	82 %	16 km/h
May	298 mm	21	13 h/day	78 %	84 %	15 km/h
June	341 mm	23	14 h/day	84 %	86 %	16 km/h
July	235 mm	22	13 h/day	76 %	84 %	16 km/h
August	281 mm	23	13 h/day	72 %	85 %	14 km/h
September	181 mm	16	12 h/day	59 %	81 %	14 km/h
October	58 mm	6	12 h/day	44 %	71 %	15 km/h
November	35 mm	5	11 h/day	46 %	67 %	16 km/h
December	38 mm	5	11 h/day	48 %	64 %	17 km/h

How Guangzhou 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
Guangzhou	32 °C	10 °C	1,888 mm	240
Sanshui · China	32 °C	10 °C	1,981 mm	230
Dongguan · China	31 °C	11 °C	1,922 mm	242
Jiangmen · China	32 °C	11 °C	1,798 mm	244
Licheng · China	31 °C	9.6 °C	2,063 mm	234
Zhongshan · China	31 °C	12 °C	1,688 mm	239
Qingyuan · China	31 °C	9.1 °C	2,471 mm	216

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

QuestionsCommon questions about Guangzhou’s climate

When is the best time to visit Guangzhou?

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

How hot does Guangzhou get?

In July, the warmest month, daily highs average 32 °C. About 116 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 10 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Guangzhou?

June, averaging 341 mm over 23 days with rain. The driest month is November with 35 mm. The year as a whole averages 1,888 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 Guangzhou 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: 23.117°, 113.250° (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.