nomadseason

Monthly climate in Hongmen, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hongmen features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (47 °F) and 30 °C (87 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 1585 mm (62.4 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually. Hongmen enjoys an average of 2829 hours of sunshine throughout the year, and daylight varies from 10 hours 25 minutes to 13 hours 50 minutes per day.

Monthly average temperatures in Hongmen, China

The warmest months in Hongmen are July, August and September, with daily mean temperatures ranging from 27 to 30 °C (82 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 10 °C (47 - 50 °F) throughout the day. On average each year, Hongmen experiences 160 days above 25 °C (77.0 °F) and 3 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hongmen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum25°C
(78°F)		26°C
(79°F)		30°C
(86°F)		33°C
(92°F)		36°C
(98°F)		36°C
(98°F)		39°C
(103°F)		38°C
(100°F)		38°C
(101°F)		37°C
(98°F)		30°C
(87°F)		26°C
(79°F)
Mean maximum22°C
(73°F)		25°C
(77°F)		28°C
(83°F)		32°C
(89°F)		34°C
(93°F)		35°C
(95°F)		38°C
(100°F)		37°C
(99°F)		37°C
(99°F)		34°C
(94°F)		27°C
(81°F)		22°C
(72°F)
Average high12°C
(54°F)		14°C
(57°F)		19°C
(67°F)		24°C
(75°F)		28°C
(83°F)		30°C
(87°F)		34°C
(94°F)		35°C
(95°F)		32°C
(90°F)		25°C
(78°F)		20°C
(69°F)		14°C
(57°F)
Daily mean8°C
(47°F)		10°C
(50°F)		15°C
(60°F)		19°C
(67°F)		24°C
(75°F)		27°C
(81°F)		30°C
(86°F)		30°C
(87°F)		27°C
(82°F)		21°C
(70°F)		16°C
(61°F)		10°C
(50°F)
Average low5°C
(42°F)		7°C
(44°F)		12°C
(53°F)		15°C
(60°F)		20°C
(69°F)		24°C
(76°F)		26°C
(80°F)		26°C
(80°F)		24°C
(75°F)		18°C
(64°F)		12°C
(54°F)		7°C
(44°F)
Mean minimum-1°C
(30°F)		1°C
(35°F)		6°C
(43°F)		9°C
(48°F)		15°C
(59°F)		21°C
(69°F)		24°C
(76°F)		24°C
(75°F)		19°C
(67°F)		11°C
(52°F)		7°C
(46°F)		1°C
(33°F)
Minimum-5°C
(23°F)		-3°C
(28°F)		3°C
(37°F)		6°C
(43°F)		12°C
(53°F)		18°C
(65°F)		22°C
(72°F)		23°C
(74°F)		16°C
(62°F)		9°C
(49°F)		5°C
(42°F)		-1°C
(31°F)

Compare climate in Hongmen with other places

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

Monthly average precipitation in Hongmen, China

Hongmen usually has the most precipitation in March, May and June, with an average of 17 rainy days and 262 mm (10.3 inches) of precipitation per month. The driest months in Hongmen are January, October and December. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hongmen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)66 (2.6)90 (3.5)185 (7.3)167 (6.6)259 (10.2)343 (13.5)164 (6.5)85 (3.3)69 (2.7)37 (1.5)72 (2.8)50 (2.0)
Average precipitation days (≥ 1 mm)81118161619121298109

Monthly sunshine hours in Hongmen, China

The sunniest months in Hongmen are July, August and September, when the sun shines an average of 9 hours 46 minutes a day. Least sunny months in Hongmen: January, February and March receive an average of 6 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hongmen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours162194191235274231307312280228207203
Mean daily daylight hours10h 36m11h 12m11h 59m12h 49m13h 30m13h 50m13h 40m13h 4m12h 17m11h 28m10h 46m10h 25m

Solar UV radiation in Hongmen, China

Hongmen experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Hongmen UV Index data.

Average daily maximum UV levels by month for Hongmen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6810111212131311975