Wenchang climate

Name: Wenchang
Address: CN

Wenchang is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 17 °C. August is the wettest month (262 mm) and January the driest (26 mm). Figures are 1991–2020 climate normals.

Across a full year Wenchang averages 1,472 mm of rain and 275 days above 25 °C.

China · population 560,894 · 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 17 °C
Driest month January 26 mm
Wettest month August 262 mm
Least cloud October 57 % cloud
Hottest on record July 38 °C
Coldest on record January 9.6 °C
Warmest sea September 29 °C

What to expectWenchang through the year

Wenchang has a clear annual cycle: average daily highs run from 22 °C in January to 31 °C in July, a swing of 9.0 °C in mean temperature across the year.

Counted across a normal year, 275 days a year reach 25 °C, 122 of them reach 30 °C. The warmest reading in the 1991–2020 record is 38 °C, in July.

Rain is strongly seasonal. August averages 262 mm against 26 mm in January — 10 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Wenchang is warmest in September at 29 °C and coldest in February at 22 °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	22.2 °C	26 mm	65 %
February	23.7 °C	29 mm	63 %
March	26.3 °C	39 mm	61 %
April	29.0 °C	71 mm	58 %
May	30.8 °C	167 mm	70 %
June	31.4 °C	163 mm	81 %
July	31.5 °C	187 mm	74 %
August	30.9 °C	262 mm	75 %
September	29.7 °C	248 mm	69 %
October	27.9 °C	185 mm	57 %
November	25.7 °C	60 mm	59 %
December	22.7 °C	35 mm	67 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	22.2 °C	17.5 °C	19.6 °C	28.8 °C	9.6 °C	5	0
February	23.7 °C	18.7 °C	20.9 °C	31.2 °C	10.2 °C	11	0
March	26.3 °C	21.2 °C	23.3 °C	31.9 °C	11.9 °C	23	2
April	29.0 °C	23.8 °C	25.9 °C	34.1 °C	15.8 °C	28	12
May	30.8 °C	25.7 °C	27.8 °C	36.1 °C	19.0 °C	31	21
June	31.4 °C	26.7 °C	28.7 °C	35.9 °C	22.7 °C	30	25
July	31.5 °C	26.5 °C	28.6 °C	37.8 °C	22.6 °C	31	25
August	30.9 °C	26.0 °C	28.1 °C	36.3 °C	23.4 °C	31	24
September	29.7 °C	25.0 °C	27.1 °C	34.3 °C	19.2 °C	30	13
October	27.9 °C	23.4 °C	25.4 °C	31.5 °C	15.5 °C	29	1
November	25.7 °C	21.6 °C	23.4 °C	30.4 °C	13.4 °C	20	0
December	22.7 °C	18.7 °C	20.5 °C	29.1 °C	9.7 °C	6	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	26 mm	7	11 h/day	65 %	79 %	21 km/h	22.6 °C
February	29 mm	7	12 h/day	63 %	82 %	21 km/h	22.2 °C
March	39 mm	10	12 h/day	61 %	83 %	22 km/h	23.1 °C
April	71 mm	12	13 h/day	58 %	83 %	22 km/h	25.2 °C
May	167 mm	17	13 h/day	70 %	83 %	20 km/h	27.3 °C
June	163 mm	18	13 h/day	81 %	83 %	21 km/h	28.0 °C
July	187 mm	19	13 h/day	74 %	82 %	20 km/h	28.1 °C
August	262 mm	25	13 h/day	75 %	85 %	17 km/h	28.4 °C
September	248 mm	22	12 h/day	69 %	85 %	17 km/h	28.5 °C
October	185 mm	15	12 h/day	57 %	81 %	21 km/h	27.4 °C
November	60 mm	10	11 h/day	59 %	78 %	23 km/h	25.8 °C
December	35 mm	6	11 h/day	67 %	77 %	23 km/h	24.1 °C

How Wenchang 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
Wenchang	31 °C	17 °C	1,472 mm	275
Qionghai · China	31 °C	17 °C	1,469 mm	268
Haikou · China	31 °C	17 °C	1,353 mm	250
Wanning · China	30 °C	18 °C	1,603 mm	258
Nada · China	32 °C	15 °C	1,390 mm	287
Zhanjiang · China	31 °C	13 °C	1,478 mm	255
Sanya · China	30 °C	18 °C	1,456 mm	310

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

QuestionsCommon questions about Wenchang’s climate

When is the best time to visit Wenchang?

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

How hot does Wenchang get?

In July, the warmest month, daily highs average 31 °C. About 122 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 17 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Wenchang?

August, averaging 262 mm over 25 days with rain. The driest month is January with 26 mm. The year as a whole averages 1,472 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 Wenchang 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: 19.552°, 110.803° (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.