Jianshui climate

Name: Jianshui
Address: CN

Jianshui is warmest in May, with average highs of 24 °C, and coldest in January, when nights average 4.5 °C. July is the wettest month (349 mm) and December the driest (44 mm). Figures are 1991–2020 climate normals.

Across a full year Jianshui averages 1,888 mm of rain, 45 days above 25 °C and 1 days below freezing.

China · population 490,000 · 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 May 24 °C
Coldest month January 4.5 °C
Driest month December 44 mm
Wettest month July 349 mm
Least cloud February 30 % cloud
Hottest on record May 32 °C
Coldest on record December -2.7 °C

What to expectJianshui through the year

Jianshui has a clear annual cycle: average daily highs run from 15 °C in January to 24 °C in May, a swing of 9.9 °C in mean temperature across the year.

Counted across a normal year, 45 days a year reach 25 °C, 1 of them reach 30 °C, 1 nights drop below freezing. The warmest reading in the 1991–2020 record is 32 °C, in May.

Rain is strongly seasonal. July averages 349 mm against 44 mm in December — 7.9 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	15.0 °C	63 mm	36 %
February	17.6 °C	46 mm	30 %
March	21.1 °C	60 mm	34 %
April	23.5 °C	95 mm	41 %
May	24.0 °C	178 mm	60 %
June	24.0 °C	286 mm	88 %
July	23.3 °C	349 mm	92 %
August	23.6 °C	306 mm	86 %
September	22.4 °C	224 mm	80 %
October	20.1 °C	165 mm	69 %
November	17.3 °C	72 mm	50 %
December	14.8 °C	44 mm	43 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C
January	15.0 °C	4.5 °C	9.6 °C	22.0 °C	-0.7 °C	0
February	17.6 °C	5.8 °C	11.6 °C	24.9 °C	1.6 °C	0
March	21.1 °C	8.8 °C	15.0 °C	27.4 °C	1.9 °C	2
April	23.5 °C	11.9 °C	17.5 °C	30.0 °C	5.5 °C	10
May	24.0 °C	14.5 °C	18.9 °C	32.0 °C	8.6 °C	12
June	24.0 °C	16.4 °C	19.4 °C	31.1 °C	11.9 °C	8
July	23.3 °C	16.5 °C	19.1 °C	27.5 °C	12.6 °C	6
August	23.6 °C	16.1 °C	19.1 °C	28.5 °C	11.4 °C	7
September	22.4 °C	15.1 °C	18.1 °C	26.9 °C	9.4 °C	1
October	20.1 °C	13.0 °C	16.1 °C	24.5 °C	5.9 °C	0
November	17.3 °C	8.7 °C	12.7 °C	22.7 °C	1.3 °C	0
December	14.8 °C	5.5 °C	9.9 °C	21.1 °C	-2.7 °C	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	63 mm	7	11 h/day	36 %	73 %	9.9 km/h
February	46 mm	6	11 h/day	30 %	64 %	12 km/h
March	60 mm	7	12 h/day	34 %	58 %	13 km/h
April	95 mm	11	13 h/day	41 %	62 %	12 km/h
May	178 mm	17	13 h/day	60 %	72 %	9.8 km/h
June	286 mm	26	14 h/day	88 %	85 %	7.6 km/h
July	349 mm	30	14 h/day	92 %	89 %	6.4 km/h
August	306 mm	28	13 h/day	86 %	87 %	5.9 km/h
September	224 mm	24	12 h/day	80 %	86 %	6.1 km/h
October	165 mm	21	12 h/day	69 %	85 %	6.5 km/h
November	72 mm	10	11 h/day	50 %	80 %	7.3 km/h
December	44 mm	7	11 h/day	43 %	78 %	7.9 km/h

How Jianshui 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
Jianshui	24 °C	4.5 °C	1,888 mm	45
Chuxiong · China	26 °C	5.2 °C	1,036 mm	96
Lincang · China	27 °C	7.6 °C	1,494 mm	154
Ning’er · China	28 °C	9.1 °C	1,848 mm	151
Pu'er · China	28 °C	9.5 °C	1,721 mm	169
Kunming · China	25 °C	4.9 °C	1,463 mm	55
Dali · China	24 °C	4.6 °C	1,249 mm	47

Where Jianshui ranks

Ranking	Position	Value
The coolest places in Asia in July	21st of 50	23 °C
The coolest places in Asia in August	30th of 50	24 °C
Places with the best weather in Asia in March	44th of 50	91/100
Places with the best weather in Asia year-round	49th of 50	76/100

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

QuestionsCommon questions about Jianshui’s climate

When is the best time to visit Jianshui?

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

How hot does Jianshui get?

In May, the warmest month, daily highs average 24 °C. About 1 days a year pass 30 °C. The highest value in the 1991–2020 record is 32 °C.

How cold does it get in winter?

Nights average 4.5 °C in January, the coldest month. A normal year has 1 nights below freezing.

Which month is wettest in Jianshui?

July, averaging 349 mm over 30 days with rain. The driest month is December with 44 mm. The year as a whole averages 1,888 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 Jianshui 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: 24.277°, 101.224° (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.