Guankou climate

Name: Guankou
Address: CN

Guankou is warmest in July, with average highs of 33 °C, and coldest in January, when nights average 2.6 °C. June is the wettest month (339 mm) and December the driest (56 mm). Figures are 1991–2020 climate normals.

Across a full year Guankou averages 1,923 mm of rain, 164 days above 25 °C and 15 days below freezing.

China · population 1,380,000 · 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 33 °C
Coldest month January 2.6 °C
Driest month December 56 mm
Wettest month June 339 mm
Least cloud October 53 % cloud
Hottest on record August 41 °C
Coldest on record December -10 °C

What to expectGuankou through the year

Guankou has a clear annual cycle: average daily highs run from 10 °C in January to 33 °C in July, a swing of 22 °C in mean temperature across the year.

Counted across a normal year, 164 days a year reach 25 °C, 88 of them reach 30 °C, 15 nights drop below freezing. The warmest reading in the 1991–2020 record is 41 °C, in August.

Rain is strongly seasonal. June averages 339 mm against 56 mm in December — 6.0 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	10.3 °C	79 mm	67 %
February	12.9 °C	107 mm	71 %
March	16.8 °C	204 mm	75 %
April	22.7 °C	284 mm	74 %
May	26.9 °C	304 mm	73 %
June	29.5 °C	339 mm	79 %
July	32.7 °C	183 mm	72 %
August	32.5 °C	137 mm	64 %
September	29.1 °C	82 mm	56 %
October	24.2 °C	64 mm	53 %
November	18.3 °C	84 mm	54 %
December	12.6 °C	56 mm	54 %

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	10.3 °C	2.6 °C	6.6 °C	26.1 °C	-8.6 °C	0	0	8
February	12.9 °C	5.0 °C	9.1 °C	28.6 °C	-3.6 °C	0	0	3
March	16.8 °C	8.9 °C	12.9 °C	30.9 °C	-1.6 °C	2	0	0
April	22.7 °C	14.6 °C	18.5 °C	32.4 °C	1.5 °C	10	1	0
May	26.9 °C	19.1 °C	22.8 °C	34.0 °C	10.1 °C	22	6	0
June	29.5 °C	22.8 °C	26.0 °C	35.5 °C	15.8 °C	27	15	0
July	32.7 °C	25.6 °C	28.9 °C	39.3 °C	18.7 °C	30	25	0
August	32.5 °C	25.0 °C	28.5 °C	41.3 °C	17.8 °C	30	25	0
September	29.1 °C	21.1 °C	24.9 °C	37.7 °C	13.1 °C	26	13	0
October	24.2 °C	15.7 °C	19.7 °C	35.1 °C	5.1 °C	14	2	0
November	18.3 °C	9.6 °C	13.9 °C	31.4 °C	-1.2 °C	2	0	0
December	12.6 °C	4.0 °C	8.4 °C	23.2 °C	-10.1 °C	0	0	4

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	79 mm	12	11 h/day	67 %	77 %	9.0 km/h
February	107 mm	12	11 h/day	71 %	78 %	9.7 km/h
March	204 mm	17	12 h/day	75 %	80 %	10 km/h
April	284 mm	17	13 h/day	74 %	80 %	11 km/h
May	304 mm	17	14 h/day	73 %	80 %	11 km/h
June	339 mm	18	14 h/day	79 %	82 %	11 km/h
July	183 mm	14	14 h/day	72 %	77 %	12 km/h
August	137 mm	14	13 h/day	64 %	77 %	10 km/h
September	82 mm	10	12 h/day	56 %	76 %	9.4 km/h
October	64 mm	8	12 h/day	53 %	74 %	9.2 km/h
November	84 mm	9	11 h/day	54 %	76 %	9.2 km/h
December	56 mm	9	10 h/day	54 %	74 %	9.0 km/h

How Guankou 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
Guankou	33 °C	2.6 °C	1,923 mm	164
Zhuzhou · China	33 °C	2.8 °C	1,852 mm	167
Pingxiang · China	33 °C	2.7 °C	1,904 mm	162
Changsha · China	33 °C	2.2 °C	1,730 mm	161
Xiangtan · China	33 °C	2.5 °C	1,775 mm	164
Yichun · China	33 °C	3.1 °C	1,973 mm	162
Heshan · China	32 °C	1.7 °C	1,679 mm	148

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

QuestionsCommon questions about Guankou’s climate

When is the best time to visit Guankou?

That depends on what you want, so the honest answer is a comparison rather than a single month. April, May, October 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 Guankou get?

In July, the warmest month, daily highs average 33 °C. About 88 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average 2.6 °C in January, the coldest month. A normal year has 15 nights below freezing.

Which month is wettest in Guankou?

June, averaging 339 mm over 18 days with rain. The driest month is December with 56 mm. The year as a whole averages 1,923 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 Guankou 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: 28.159°, 113.627° (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.