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Monthly climate in Henan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Henan features a humid continental climate (Dwb). Temperatures typically range between -20 °C (-4 °F) and 23 °C (74 °F) through the year, but rarely can drop to -38 °C (-36 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 689 mm (27.1 inches) and receives 79 rainy days on the 1 mm (0.04 inches) threshold annually. Henan enjoys an average of 3272 hours of sunshine throughout the year, and daylight varies from 8 hours 26 minutes to 15 hours 57 minutes per day.

Monthly average temperatures in Henan, China

The warmest months in Henan are June, July and August, with daily mean temperatures ranging from 19 to 23 °C (66 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -20 to -15 °C (-4 - 5 °F) throughout the day. On average each year, Henan experiences 46 days above 25 °C (77.0 °F) and 171 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Henan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-4°C
(25°F)		8°C
(46°F)		17°C
(63°F)		27°C
(80°F)		32°C
(89°F)		36°C
(97°F)		34°C
(94°F)		30°C
(85°F)		28°C
(83°F)		25°C
(77°F)		14°C
(57°F)		5°C
(41°F)
Mean maximum-8°C
(18°F)		-0°C
(32°F)		12°C
(55°F)		22°C
(73°F)		30°C
(85°F)		29°C
(85°F)		32°C
(90°F)		29°C
(84°F)		26°C
(78°F)		20°C
(69°F)		9°C
(48°F)		-3°C
(27°F)
Average high-14°C
(6°F)		-10°C
(15°F)		2°C
(36°F)		12°C
(53°F)		19°C
(67°F)		24°C
(75°F)		28°C
(82°F)		24°C
(75°F)		19°C
(67°F)		10°C
(51°F)		-3°C
(28°F)		-13°C
(8°F)
Daily mean-20°C
(-4°F)		-15°C
(5°F)		-4°C
(26°F)		6°C
(43°F)		14°C
(57°F)		19°C
(66°F)		23°C
(74°F)		20°C
(67°F)		14°C
(58°F)		5°C
(41°F)		-7°C
(19°F)		-18°C
(0°F)
Average low-25°C
(-12°F)		-21°C
(-5°F)		-9°C
(16°F)		-0°C
(32°F)		7°C
(46°F)		14°C
(57°F)		19°C
(66°F)		16°C
(60°F)		9°C
(48°F)		-1°C
(31°F)		-11°C
(12°F)		-22°C
(-7°F)
Mean minimum-31°C
(-24°F)		-29°C
(-19°F)		-20°C
(-3°F)		-7°C
(19°F)		0°C
(33°F)		8°C
(47°F)		14°C
(57°F)		8°C
(47°F)		1°C
(35°F)		-7°C
(19°F)		-20°C
(-4°F)		-28°C
(-19°F)
Minimum-38°C
(-36°F)		-32°C
(-25°F)		-29°C
(-20°F)		-10°C
(14°F)		-1°C
(30°F)		6°C
(43°F)		12°C
(55°F)		4°C
(40°F)		-0°C
(32°F)		-9°C
(16°F)		-25°C
(-13°F)		-32°C
(-25°F)

Compare climate in Henan with other places

Compare temperature, precipitation, sunshine, UV index in Henan, China with other places around the world.

Monthly average precipitation in Henan, China

Henan usually has the most precipitation in June, July and August, with an average of 14 rainy days and 150 mm (5.9 inches) of precipitation per month. The driest months in Henan are January, February and December. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Henan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)4 (0.1)5 (0.2)12 (0.5)33 (1.3)42 (1.7)123 (4.9)154 (6.1)173 (6.8)95 (3.8)22 (0.9)18 (0.7)6 (0.2)
Average precipitation days (≥ 1 mm)1134713151610441

Monthly sunshine hours in Henan, China

The sunniest months in Henan are May, June and July, when the sun shines an average of 10 hours 51 minutes a day. Least sunny months in Henan: January, November and December receive an average of 6 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Henan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours184241285308332324341280278254214225
Mean daily daylight hours8h 51m10h 12m11h 54m13h 39m15h 10m15h 57m15h 33m14h 13m12h 32m10h 48m9h 15m8h 26m

Solar UV radiation in Henan, China

Henan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Henan UV Index data.

Average daily maximum UV levels by month for Henan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)224678986421