Hefei climate

Name: Hefei
Address: CN

Hefei is warmest in July, with average highs of 32 °C, and coldest in January, when nights average -1.1 °C. June is the wettest month (195 mm) and December the driest (29 mm). Figures are 1991–2020 climate normals.

Across a full year Hefei averages 1,113 mm of rain, 146 days above 25 °C and 45 days below freezing.

China · population 5,050,000 · 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 32 °C
Coldest month January -1.1 °C
Driest month December 29 mm
Wettest month June 195 mm
Least cloud December 47 % cloud
Hottest on record July 39 °C
Coldest on record February -17 °C

What to expectHefei through the year

Hefei has a clear annual cycle: average daily highs run from 7.8 °C in January to 32 °C in July, a swing of 25 °C in mean temperature across the year.

Counted across a normal year, 146 days a year reach 25 °C, 69 of them reach 30 °C, 45 nights drop below freezing. The warmest reading in the 1991–2020 record is 39 °C, in July.

Rain is strongly seasonal. June averages 195 mm against 29 mm in December — 6.8 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	7.8 °C	48 mm	56 %
February	10.5 °C	51 mm	61 %
March	15.4 °C	75 mm	66 %
April	21.5 °C	89 mm	64 %
May	26.3 °C	114 mm	67 %
June	29.1 °C	195 mm	71 %
July	31.6 °C	187 mm	70 %
August	31.1 °C	150 mm	62 %
September	27.5 °C	78 mm	57 %
October	22.6 °C	51 mm	52 %
November	16.3 °C	44 mm	49 %
December	10.0 °C	29 mm	47 %

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	7.8 °C	-1.1 °C	3.3 °C	22.5 °C	-15.0 °C	0	0	19
February	10.5 °C	1.3 °C	5.9 °C	25.0 °C	-16.7 °C	0	0	11
March	15.4 °C	6.0 °C	10.6 °C	29.7 °C	-4.5 °C	1	0	1
April	21.5 °C	12.2 °C	16.7 °C	35.6 °C	0.3 °C	7	1	0
May	26.3 °C	17.5 °C	21.7 °C	37.6 °C	7.0 °C	20	5	0
June	29.1 °C	21.7 °C	25.2 °C	37.1 °C	13.7 °C	26	13	0
July	31.6 °C	25.4 °C	28.2 °C	38.8 °C	16.5 °C	30	22	0
August	31.1 °C	24.5 °C	27.5 °C	38.3 °C	17.4 °C	29	21	0
September	27.5 °C	19.9 °C	23.4 °C	38.2 °C	11.2 °C	24	6	0
October	22.6 °C	13.9 °C	18.0 °C	33.0 °C	3.6 °C	8	1	0
November	16.3 °C	7.3 °C	11.6 °C	28.2 °C	-7.1 °C	1	0	1
December	10.0 °C	0.9 °C	5.3 °C	21.8 °C	-12.2 °C	0	0	13

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	48 mm	7	10 h/day	56 %	71 %	14 km/h
February	51 mm	8	11 h/day	61 %	70 %	15 km/h
March	75 mm	10	12 h/day	66 %	70 %	16 km/h
April	89 mm	9	13 h/day	64 %	70 %	16 km/h
May	114 mm	10	14 h/day	67 %	71 %	15 km/h
June	195 mm	12	14 h/day	71 %	77 %	15 km/h
July	187 mm	14	14 h/day	70 %	80 %	14 km/h
August	150 mm	13	13 h/day	62 %	80 %	14 km/h
September	78 mm	8	12 h/day	57 %	75 %	14 km/h
October	51 mm	6	11 h/day	52 %	70 %	13 km/h
November	44 mm	6	11 h/day	49 %	71 %	14 km/h
December	29 mm	5	10 h/day	47 %	70 %	14 km/h

How Hefei 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
Hefei	32 °C	-1.1 °C	1,113 mm	146
Lu’an · China	32 °C	-1.7 °C	1,085 mm	145
Huainan · China	31 °C	-1.9 °C	982 mm	142
Chuzhou · China	31 °C	-1.7 °C	1,177 mm	139
Ma’anshan · China	32 °C	-0.7 °C	1,267 mm	140
Bengbu · China	31 °C	-2.3 °C	997 mm	142
Wuhu · China	32 °C	-0.3 °C	1,358 mm	144

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

QuestionsCommon questions about Hefei’s climate

When is the best time to visit Hefei?

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 Hefei get?

In July, the warmest month, daily highs average 32 °C. About 69 days a year pass 30 °C. The highest value in the 1991–2020 record is 39 °C.

How cold does it get in winter?

Nights average -1.1 °C in January, the coldest month. A normal year has 45 nights below freezing.

Which month is wettest in Hefei?

June, averaging 195 mm over 12 days with rain. The driest month is December with 29 mm. The year as a whole averages 1,113 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 Hefei 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: 31.864°, 117.281° (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.