Heyuan climate

Name: Heyuan
Address: CN

Heyuan is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 8.5 °C. June is the wettest month (298 mm) and November the driest (34 mm). Figures are 1991–2020 climate normals.

Across a full year Heyuan averages 1,667 mm of rain, 226 days above 25 °C and 0 days below freezing.

China · population 463,907 · 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 8.5 °C
Driest month November 34 mm
Wettest month June 298 mm
Least cloud November 42 % cloud
Hottest on record May 38 °C
Coldest on record December -0.7 °C

What to expectHeyuan through the year

Heyuan has a clear annual cycle: average daily highs run from 18 °C in January to 31 °C in July, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 226 days a year reach 25 °C, 96 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in May.

Rain is strongly seasonal. June averages 298 mm against 34 mm in November — 8.7 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	17.6 °C	47 mm	52 %
February	19.3 °C	61 mm	65 %
March	22.3 °C	122 mm	73 %
April	25.9 °C	172 mm	76 %
May	28.5 °C	246 mm	79 %
June	29.8 °C	298 mm	85 %
July	31.1 °C	211 mm	76 %
August	31.1 °C	241 mm	72 %
September	30.1 °C	153 mm	59 %
October	27.9 °C	45 mm	42 %
November	24.0 °C	34 mm	42 %
December	19.0 °C	36 mm	43 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	17.6 °C	8.5 °C	12.9 °C	27.5 °C	-0.3 °C	1	0
February	19.3 °C	10.8 °C	14.9 °C	31.1 °C	0.2 °C	5	0
March	22.3 °C	14.3 °C	18.1 °C	30.4 °C	3.9 °C	11	0
April	25.9 °C	19.0 °C	22.1 °C	33.2 °C	8.1 °C	20	2
May	28.5 °C	22.4 °C	25.0 °C	38.1 °C	15.3 °C	28	9
June	29.8 °C	24.5 °C	26.7 °C	36.2 °C	18.7 °C	29	15
July	31.1 °C	25.2 °C	27.7 °C	37.0 °C	21.2 °C	31	23
August	31.1 °C	25.1 °C	27.6 °C	36.8 °C	22.6 °C	31	22
September	30.1 °C	23.5 °C	26.4 °C	36.6 °C	15.5 °C	29	17
October	27.9 °C	19.7 °C	23.4 °C	34.0 °C	9.5 °C	27	6
November	24.0 °C	14.9 °C	19.1 °C	32.0 °C	4.9 °C	13	1
December	19.0 °C	9.6 °C	14.0 °C	27.6 °C	-0.7 °C	2	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	47 mm	6	11 h/day	52 %	71 %	13 km/h
February	61 mm	9	11 h/day	65 %	76 %	12 km/h
March	122 mm	13	12 h/day	73 %	80 %	13 km/h
April	172 mm	15	13 h/day	76 %	83 %	12 km/h
May	246 mm	20	13 h/day	79 %	85 %	11 km/h
June	298 mm	23	14 h/day	85 %	88 %	12 km/h
July	211 mm	21	13 h/day	76 %	86 %	12 km/h
August	241 mm	22	13 h/day	72 %	86 %	11 km/h
September	153 mm	14	12 h/day	59 %	81 %	11 km/h
October	45 mm	5	12 h/day	42 %	72 %	12 km/h
November	34 mm	5	11 h/day	42 %	70 %	13 km/h
December	36 mm	4	11 h/day	43 %	68 %	14 km/h

How Heyuan 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
Heyuan	31 °C	8.5 °C	1,667 mm	226
Huizhou · China	31 °C	9.5 °C	1,788 mm	241
Licheng · China	31 °C	9.6 °C	2,063 mm	234
Xingning · China	32 °C	8.0 °C	1,555 mm	225
Dongguan · China	31 °C	11 °C	1,922 mm	242
Shanwei · China	30 °C	12 °C	1,877 mm	214
Donghai · China	30 °C	11 °C	1,776 mm	233

Where Heyuan ranks

Ranking	Position	Value
Places with the best weather in Asia in November	30thof 50	96/100

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

QuestionsCommon questions about Heyuan’s climate

When is the best time to visit Heyuan?

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 Heyuan get?

In July, the warmest month, daily highs average 31 °C. About 96 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 8.5 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Heyuan?

June, averaging 298 mm over 23 days with rain. The driest month is November with 34 mm. The year as a whole averages 1,667 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 Heyuan 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.