Nanyang climate

Name: Nanyang
Address: CN

Nanyang is warmest in July, with average highs of 31 °C, and coldest in January, when nights average -2.7 °C. July is the wettest month (212 mm) and December the driest (13 mm). Figures are 1991–2020 climate normals.

Across a full year Nanyang averages 896 mm of rain, 147 days above 25 °C and 65 days below freezing.

China · population 1,811,812 · 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 -2.7 °C
Driest month December 13 mm
Wettest month July 212 mm
Least cloud December 46 % cloud
Hottest on record June 40 °C
Coldest on record January -17 °C

What to expectNanyang through the year

Nanyang has a clear annual cycle: average daily highs run from 8.0 °C in January to 31 °C in July, a swing of 25 °C in mean temperature across the year.

Counted across a normal year, 147 days a year reach 25 °C, 74 of them reach 30 °C, 65 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in June.

Rain is strongly seasonal. July averages 212 mm against 13 mm in December — 16 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	8.0 °C	13 mm	48 %
February	11.1 °C	20 mm	57 %
March	16.0 °C	41 mm	63 %
April	22.4 °C	51 mm	62 %
May	27.3 °C	85 mm	66 %
June	30.8 °C	129 mm	65 %
July	31.3 °C	212 mm	66 %
August	30.1 °C	157 mm	60 %
September	26.5 °C	80 mm	59 %
October	22.0 °C	54 mm	56 %
November	15.4 °C	40 mm	52 %
December	9.7 °C	13 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	8.0 °C	-2.7 °C	2.5 °C	18.8 °C	-17.4 °C	0	0	26
February	11.1 °C	0.0 °C	5.6 °C	22.8 °C	-9.8 °C	0	0	14
March	16.0 °C	5.0 °C	10.5 °C	30.3 °C	-5.1 °C	1	0	3
April	22.4 °C	11.3 °C	16.7 °C	36.2 °C	1.5 °C	9	1	0
May	27.3 °C	16.7 °C	21.9 °C	38.2 °C	6.3 °C	22	9	0
June	30.8 °C	21.1 °C	25.8 °C	39.6 °C	12.9 °C	28	19	0
July	31.3 °C	23.7 °C	27.3 °C	38.1 °C	16.7 °C	30	22	0
August	30.1 °C	22.8 °C	26.3 °C	39.2 °C	14.0 °C	29	18	0
September	26.5 °C	18.2 °C	22.1 °C	39.1 °C	9.5 °C	20	5	0
October	22.0 °C	12.3 °C	16.9 °C	33.8 °C	2.1 °C	8	1	0
November	15.4 °C	5.4 °C	10.3 °C	27.5 °C	-8.7 °C	0	0	3
December	9.7 °C	-0.9 °C	4.2 °C	20.8 °C	-15.7 °C	0	0	19

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	13 mm	3	10 h/day	48 %	64 %	13 km/h
February	20 mm	4	11 h/day	57 %	64 %	14 km/h
March	41 mm	6	12 h/day	63 %	65 %	16 km/h
April	51 mm	7	13 h/day	62 %	65 %	16 km/h
May	85 mm	8	14 h/day	66 %	65 %	15 km/h
June	129 mm	8	14 h/day	65 %	69 %	14 km/h
July	212 mm	14	14 h/day	66 %	79 %	13 km/h
August	157 mm	13	13 h/day	60 %	79 %	13 km/h
September	80 mm	9	12 h/day	59 %	73 %	13 km/h
October	54 mm	7	11 h/day	56 %	67 %	13 km/h
November	40 mm	6	10 h/day	52 %	68 %	13 km/h
December	13 mm	3	10.0 h/day	46 %	65 %	13 km/h

How Nanyang 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
Nanyang	31 °C	-2.7 °C	896 mm	147
Tanghe · China	31 °C	-2.7 °C	919 mm	148
Dengzhou · China	32 °C	-2.4 °C	846 mm	150
Zaoyang · China	31 °C	-1.7 °C	968 mm	146
Laohekou · China	32 °C	-1.6 °C	829 mm	147
Xiangyang · China	31 °C	-1.5 °C	952 mm	148
Zhumadian · China	31 °C	-2.8 °C	949 mm	143

Where Nanyang ranks

Ranking	Position	Value
Places with the best weather in Asia in April	44th of 50	94/100

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

QuestionsCommon questions about Nanyang’s climate

When is the best time to visit Nanyang?

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 Nanyang get?

In July, the warmest month, daily highs average 31 °C. About 74 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average -2.7 °C in January, the coldest month. A normal year has 65 nights below freezing.

Which month is wettest in Nanyang?

July, averaging 212 mm over 14 days with rain. The driest month is December with 13 mm. The year as a whole averages 896 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 Nanyang 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: 33.005°, 112.547° (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.