Suizhou climate

Name: Suizhou
Address: CN

Suizhou is warmest in July, with average highs of 31 °C, and coldest in January, when nights average -1.5 °C. July is the wettest month (225 mm) and December the driest (20 mm). Figures are 1991–2020 climate normals.

Across a full year Suizhou averages 1,099 mm of rain, 145 days above 25 °C and 50 days below freezing.

China · population 618,582 · 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 -1.5 °C
Driest month December 20 mm
Wettest month July 225 mm
Least cloud December 46 % cloud
Hottest on record August 39 °C
Coldest on record December -14 °C

What to expectSuizhou through the year

Suizhou has a clear annual cycle: average daily highs run from 8.4 °C in January to 31 °C in July, a swing of 24 °C in mean temperature across the year.

Counted across a normal year, 145 days a year reach 25 °C, 67 of them reach 30 °C, 50 nights drop below freezing. The warmest reading in the 1991–2020 record is 39 °C, in August.

Rain is strongly seasonal. July averages 225 mm against 20 mm in December — 11 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	8.4 °C	27 mm	51 %
February	11.3 °C	35 mm	58 %
March	15.9 °C	56 mm	64 %
April	21.9 °C	93 mm	63 %
May	26.2 °C	130 mm	67 %
June	29.4 °C	169 mm	68 %
July	31.1 °C	225 mm	67 %
August	30.6 °C	152 mm	60 %
September	27.1 °C	80 mm	57 %
October	22.2 °C	65 mm	54 %
November	16.0 °C	46 mm	50 %
December	10.3 °C	20 mm	46 %

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	8.4 °C	-1.5 °C	3.4 °C	22.9 °C	-13.8 °C	0	0	22
February	11.3 °C	1.0 °C	6.2 °C	25.7 °C	-8.7 °C	0	0	12
March	15.9 °C	5.8 °C	10.9 °C	29.5 °C	-5.0 °C	1	0	2
April	21.9 °C	11.9 °C	16.8 °C	36.2 °C	1.6 °C	8	1	0
May	26.2 °C	16.9 °C	21.4 °C	37.7 °C	6.1 °C	20	5	0
June	29.4 °C	21.2 °C	25.1 °C	36.6 °C	13.5 °C	27	14	0
July	31.1 °C	24.3 °C	27.5 °C	37.4 °C	16.5 °C	30	21	0
August	30.6 °C	23.4 °C	26.8 °C	39.4 °C	14.7 °C	29	20	0
September	27.1 °C	18.9 °C	22.7 °C	37.0 °C	10.8 °C	22	6	0
October	22.2 °C	13.0 °C	17.4 °C	34.6 °C	3.2 °C	8	1	0
November	16.0 °C	6.5 °C	11.1 °C	27.3 °C	-6.4 °C	0	0	1
December	10.3 °C	0.5 °C	5.2 °C	21.1 °C	-14.0 °C	0	0	14

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	27 mm	5	10 h/day	51 %	68 %	13 km/h
February	35 mm	6	11 h/day	58 %	69 %	14 km/h
March	56 mm	8	12 h/day	64 %	70 %	15 km/h
April	93 mm	9	13 h/day	63 %	71 %	15 km/h
May	130 mm	10	14 h/day	67 %	73 %	15 km/h
June	169 mm	11	14 h/day	68 %	78 %	13 km/h
July	225 mm	15	14 h/day	67 %	82 %	14 km/h
August	152 mm	13	13 h/day	60 %	80 %	13 km/h
September	80 mm	8	12 h/day	57 %	74 %	13 km/h
October	65 mm	7	11 h/day	54 %	70 %	12 km/h
November	46 mm	7	11 h/day	50 %	70 %	13 km/h
December	20 mm	4	10 h/day	46 %	68 %	13 km/h

How Suizhou 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
Suizhou	31 °C	-1.5 °C	1,099 mm	145
Zaoyang · China	31 °C	-1.7 °C	968 mm	146
Xinyang · China	31 °C	-2.0 °C	1,120 mm	144
Xiaogan · China	32 °C	-0.6 °C	1,348 mm	153
Tanghe · China	31 °C	-2.7 °C	919 mm	148
Jingling · China	31 °C	-0.3 °C	1,311 mm	152
Xiangyang · China	31 °C	-1.5 °C	952 mm	148

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

QuestionsCommon questions about Suizhou’s climate

When is the best time to visit Suizhou?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, September, 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 Suizhou get?

In July, the warmest month, daily highs average 31 °C. About 67 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 -1.5 °C in January, the coldest month. A normal year has 50 nights below freezing.

Which month is wettest in Suizhou?

July, averaging 225 mm over 15 days with rain. The driest month is December with 20 mm. The year as a whole averages 1,099 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 Suizhou 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: 31.711°, 113.363° (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.