Donghai climate

Name: Donghai
Address: CN

Donghai is warmest in August, with average highs of 30 °C, and coldest in January, when nights average 11 °C. August is the wettest month (343 mm) and January the driest (26 mm). Figures are 1991–2020 climate normals.

Across a full year Donghai averages 1,776 mm of rain and 233 days above 25 °C.

China · population 264,709 · 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 30 °C
Coldest month January 11 °C
Driest month January 26 mm
Wettest month August 343 mm
Least cloud November 44 % cloud
Hottest on record June 37 °C
Coldest on record January 0.3 °C
Warmest sea August 28 °C

What to expectDonghai through the year

Donghai has a clear annual cycle: average daily highs run from 20 °C in January to 30 °C in August, a swing of 13 °C in mean temperature across the year.

Counted across a normal year, 233 days a year reach 25 °C, 73 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in June.

Rain is strongly seasonal. August averages 343 mm against 26 mm in January — 13 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Donghai is warmest in August at 28 °C and coldest in January at 19 °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	19.6 °C	26 mm	49 %
February	20.6 °C	40 mm	63 %
March	23.2 °C	62 mm	69 %
April	26.0 °C	124 mm	73 %
May	28.2 °C	229 mm	78 %
June	29.3 °C	332 mm	85 %
July	30.3 °C	287 mm	76 %
August	30.3 °C	343 mm	75 %
September	29.7 °C	205 mm	62 %
October	28.0 °C	56 mm	45 %
November	25.1 °C	41 mm	44 %
December	20.8 °C	31 mm	45 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	19.6 °C	10.7 °C	14.7 °C	28.7 °C	0.3 °C	2	0
February	20.6 °C	12.4 °C	16.0 °C	29.5 °C	3.7 °C	4	0
March	23.2 °C	15.4 °C	18.8 °C	32.1 °C	4.3 °C	10	0
April	26.0 °C	19.3 °C	22.2 °C	32.1 °C	10.8 °C	20	1
May	28.2 °C	22.6 °C	25.0 °C	35.1 °C	16.1 °C	28	5
June	29.3 °C	24.9 °C	26.7 °C	37.1 °C	18.6 °C	29	11
July	30.3 °C	25.5 °C	27.5 °C	36.0 °C	22.1 °C	31	18
August	30.3 °C	25.2 °C	27.4 °C	35.5 °C	23.0 °C	31	19
September	29.7 °C	23.9 °C	26.4 °C	34.4 °C	17.7 °C	30	14
October	28.0 °C	20.5 °C	23.8 °C	33.0 °C	11.6 °C	29	4
November	25.1 °C	16.6 °C	20.3 °C	31.7 °C	6.3 °C	17	0
December	20.8 °C	12.0 °C	16.0 °C	28.3 °C	1.2 °C	3	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	26 mm	4	11 h/day	49 %	70 %	15 km/h	18.7 °C
February	40 mm	6	11 h/day	63 %	74 %	15 km/h	19.1 °C
March	62 mm	10	12 h/day	69 %	78 %	15 km/h	20.2 °C
April	124 mm	12	13 h/day	73 %	82 %	15 km/h	22.3 °C
May	229 mm	20	13 h/day	78 %	86 %	15 km/h	25.2 °C
June	332 mm	25	14 h/day	85 %	89 %	16 km/h	27.6 °C
July	287 mm	24	13 h/day	76 %	88 %	15 km/h	28.2 °C
August	343 mm	25	13 h/day	75 %	88 %	14 km/h	28.3 °C
September	205 mm	17	12 h/day	62 %	84 %	14 km/h	28.0 °C
October	56 mm	6	12 h/day	45 %	76 %	15 km/h	25.9 °C
November	41 mm	5	11 h/day	44 %	71 %	16 km/h	22.8 °C
December	31 mm	4	11 h/day	45 %	68 %	16 km/h	19.7 °C

How Donghai 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
Donghai	30 °C	11 °C	1,776 mm	233
Shanwei · China	30 °C	12 °C	1,877 mm	214
Puning · China	31 °C	10 °C	1,568 mm	231
Jieyang · China	31 °C	10 °C	1,519 mm	234
Shantou · China	30 °C	12 °C	1,507 mm	200
Huizhou · China	31 °C	9.5 °C	1,788 mm	241
Chaozhou · China	31 °C	9.4 °C	1,699 mm	225

Where Donghai ranks

Ranking	Position	Value
Best beach destinations in Asia in October	15thof 50	94/100
Places with the best weather in Asia in December	28thof 50	96/100
Best beach destinations in Asia in November	40thof 50	91/100
Best beach destinations in the world in October	43rdof 50	94/100
Places with the best weather in the world in December	46thof 50	96/100

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

QuestionsCommon questions about Donghai’s climate

When is the best time to visit Donghai?

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, August is the warmest month and January the driest. The month-by-month table above has the full picture.

How hot does Donghai get?

In August, the warmest month, daily highs average 30 °C. About 73 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 11 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Donghai?

August, averaging 343 mm over 25 days with rain. The driest month is January with 26 mm. The year as a whole averages 1,776 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 Donghai 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.