Sanhe climate

Name: Sanhe
Address: CN

Sanhe is warmest in July, with average highs of 31 °C, and coldest in January, when nights average -8.6 °C. July is the wettest month (180 mm) and January the driest (2.7 mm). Figures are 1991–2020 climate normals.

Across a full year Sanhe averages 596 mm of rain, 136 days above 25 °C and 129 days below freezing.

China · population 965,075 · 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 -8.6 °C
Driest month January 3 mm
Wettest month July 180 mm
Least cloud December 25 % cloud
Hottest on record July 41 °C
Coldest on record January -22 °C

What to expectSanhe through the year

Sanhe has a clear annual cycle: average daily highs run from 1.5 °C in January to 31 °C in July, a swing of 30 °C in mean temperature across the year.

Counted across a normal year, 136 days a year reach 25 °C, 66 of them reach 30 °C, 129 nights drop below freezing. The warmest reading in the 1991–2020 record is 41 °C, in July.

Rain is strongly seasonal. July averages 180 mm against 3 mm in January — 67 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	1.5 °C	3 mm	27 %
February	5.6 °C	5 mm	33 %
March	12.8 °C	9 mm	38 %
April	21.0 °C	21 mm	42 %
May	27.6 °C	41 mm	47 %
June	31.1 °C	89 mm	56 %
July	31.2 °C	180 mm	59 %
August	29.7 °C	133 mm	54 %
September	25.8 °C	61 mm	45 %
October	18.8 °C	35 mm	35 %
November	9.5 °C	15 mm	31 %
December	2.7 °C	4 mm	25 %

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	1.5 °C	-8.6 °C	-3.9 °C	11.1 °C	-22.3 °C	0	0	31
February	5.6 °C	-5.5 °C	-0.3 °C	17.4 °C	-17.4 °C	0	0	28
March	12.8 °C	-0.4 °C	6.0 °C	27.9 °C	-11.8 °C	0	0	18
April	21.0 °C	7.4 °C	14.2 °C	33.9 °C	-4.5 °C	7	1	1
May	27.6 °C	14.2 °C	20.9 °C	40.1 °C	2.3 °C	23	9	0
June	31.1 °C	19.6 °C	25.2 °C	40.6 °C	10.1 °C	28	19	0
July	31.2 °C	22.4 °C	26.6 °C	40.7 °C	15.5 °C	30	20	0
August	29.7 °C	21.0 °C	25.2 °C	36.8 °C	11.5 °C	30	15	0
September	25.8 °C	15.4 °C	20.4 °C	34.9 °C	5.8 °C	18	3	0
October	18.8 °C	7.6 °C	13.0 °C	30.3 °C	-3.1 °C	2	0	1
November	9.5 °C	-1.2 °C	3.8 °C	22.3 °C	-12.2 °C	0	0	20
December	2.7 °C	-6.6 °C	-2.4 °C	11.9 °C	-17.7 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	3 mm	1	9.7 h/day	27 %	43 %	14 km/h
February	5 mm	1	11 h/day	33 %	44 %	15 km/h
March	9 mm	2	12 h/day	38 %	43 %	17 km/h
April	21 mm	4	13 h/day	42 %	42 %	18 km/h
May	41 mm	5	14 h/day	47 %	44 %	18 km/h
June	89 mm	9	15 h/day	56 %	57 %	16 km/h
July	180 mm	13	15 h/day	59 %	73 %	13 km/h
August	133 mm	11	14 h/day	54 %	76 %	11 km/h
September	61 mm	7	12 h/day	45 %	66 %	13 km/h
October	35 mm	4	11 h/day	35 %	58 %	14 km/h
November	15 mm	2	10.0 h/day	31 %	56 %	14 km/h
December	4 mm	1	9.4 h/day	25 %	47 %	14 km/h

How Sanhe 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
Sanhe	31 °C	-8.6 °C	596 mm	136
Tongzhou · China	32 °C	-8.2 °C	580 mm	142
Beijing · China	32 °C	-8.3 °C	545 mm	141
Langfang · China	32 °C	-7.2 °C	618 mm	144
Mentougou · China	31 °C	-8.4 °C	683 mm	134
Tianjin · China	31 °C	-7.6 °C	591 mm	138
Tangshan · China	31 °C	-8.3 °C	647 mm	130

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

QuestionsCommon questions about Sanhe’s climate

When is the best time to visit Sanhe?

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

How hot does Sanhe get?

In July, the warmest month, daily highs average 31 °C. About 66 days a year pass 30 °C. The highest value in the 1991–2020 record is 41 °C.

How cold does it get in winter?

Nights average -8.6 °C in January, the coldest month. A normal year has 129 nights below freezing.

Which month is wettest in Sanhe?

July, averaging 180 mm over 13 days with rain. The driest month is January with 3 mm. The year as a whole averages 596 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 Sanhe 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.