Zhongshan climate

Name: Zhongshan
Address: CN

Zhongshan is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 12 °C. August is the wettest month (298 mm) and December the driest (31 mm). Figures are 1991–2020 climate normals.

Across a full year Zhongshan averages 1,688 mm of rain and 239 days above 25 °C.

China · population 3,841,873 · 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 31 °C
Coldest month January 12 °C
Driest month December 31 mm
Wettest month August 298 mm
Least cloud October 44 % cloud
Hottest on record July 38 °C
Coldest on record January 2.4 °C
Warmest sea August 29 °C

What to expectZhongshan through the year

Zhongshan has a clear annual cycle: average daily highs run from 19 °C in January to 31 °C in July, a swing of 13 °C in mean temperature across the year.

Counted across a normal year, 239 days a year reach 25 °C, 97 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in July.

Rain is strongly seasonal. August averages 298 mm against 31 mm in December — 9.7 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Zhongshan is warmest in August at 29 °C and coldest in February at 18 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	19.2 °C	31 mm	56 %
February	20.7 °C	42 mm	68 %
March	23.6 °C	80 mm	74 %
April	26.7 °C	140 mm	73 %
May	29.0 °C	249 mm	77 %
June	30.4 °C	290 mm	83 %
July	31.1 °C	223 mm	75 %
August	31.0 °C	298 mm	72 %
September	30.0 °C	207 mm	59 %
October	28.0 °C	63 mm	44 %
November	24.7 °C	34 mm	45 %
December	20.4 °C	31 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	19.2 °C	11.7 °C	15.3 °C	28.9 °C	2.4 °C	1	0
February	20.7 °C	13.7 °C	16.9 °C	29.0 °C	3.2 °C	5	0
March	23.6 °C	17.1 °C	20.0 °C	30.1 °C	7.0 °C	13	0
April	26.7 °C	20.9 °C	23.4 °C	32.3 °C	11.1 °C	23	2
May	29.0 °C	23.9 °C	26.1 °C	34.6 °C	16.7 °C	29	10
June	30.4 °C	25.9 °C	27.8 °C	34.9 °C	20.4 °C	30	18
July	31.1 °C	26.3 °C	28.3 °C	38.3 °C	23.0 °C	31	23
August	31.0 °C	26.0 °C	28.1 °C	35.5 °C	23.9 °C	31	22
September	30.0 °C	24.7 °C	27.0 °C	34.7 °C	17.8 °C	30	17
October	28.0 °C	21.4 °C	24.4 °C	34.3 °C	13.3 °C	29	4
November	24.7 °C	17.4 °C	20.7 °C	31.4 °C	7.3 °C	15	1
December	20.4 °C	12.7 °C	16.4 °C	28.5 °C	2.5 °C	3	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	31 mm	5	11 h/day	56 %	71 %	16 km/h	18.4 °C
February	42 mm	8	11 h/day	68 %	76 %	17 km/h	18.2 °C
March	80 mm	11	12 h/day	74 %	80 %	18 km/h	19.6 °C
April	140 mm	15	13 h/day	73 %	83 %	18 km/h	22.4 °C
May	249 mm	20	13 h/day	77 %	85 %	17 km/h	25.8 °C
June	290 mm	23	14 h/day	83 %	86 %	18 km/h	27.7 °C
July	223 mm	21	13 h/day	75 %	84 %	18 km/h	28.5 °C
August	298 mm	24	13 h/day	72 %	85 %	15 km/h	28.8 °C
September	207 mm	17	12 h/day	59 %	82 %	15 km/h	28.4 °C
October	63 mm	7	12 h/day	44 %	74 %	16 km/h	26.5 °C
November	34 mm	5	11 h/day	45 %	71 %	16 km/h	23.4 °C
December	31 mm	4	11 h/day	48 %	67 %	17 km/h	20.0 °C

How Zhongshan 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
Zhongshan	31 °C	12 °C	1,688 mm	239
Jiangmen · China	32 °C	11 °C	1,798 mm	244
Zhuhai · China	30 °C	12 °C	1,726 mm	216
Jing’an · China	30 °C	13 °C	1,767 mm	217
Tantou · China	31 °C	11 °C	1,885 mm	236
Dongguan · China	31 °C	11 °C	1,922 mm	242
Guangzhou · China	32 °C	10 °C	1,888 mm	240

Where Zhongshan ranks

Ranking	Position	Value
Best beach destinations in Asia in October	29thof 50	91/100
Places with the best weather in Asia in December	39thof 50	95/100
Best beach destinations in Asia in November	48thof 50	90/100

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

QuestionsCommon questions about Zhongshan’s climate

When is the best time to visit Zhongshan?

That depends on what you want, so the honest answer is a comparison rather than a single month. February, March, November 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 Zhongshan get?

In July, the warmest month, daily highs average 31 °C. About 97 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average 12 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Zhongshan?

August, averaging 298 mm over 24 days with rain. The driest month is December with 31 mm. The year as a whole averages 1,688 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 Zhongshan 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.