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Monthly climate in Nanmen, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nanmen features a humid subtropical climate (Cwa). Temperatures typically range between 7 °C (45 °F) and 29 °C (84 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1656 mm (65.2 inches) and receives 165 rainy days on the 1 mm (0.04 inches) threshold annually. Nanmen enjoys an average of 2737 hours of sunshine throughout the year, and daylight varies from 10 hours 10 minutes to 14 hours 6 minutes per day.

Monthly average temperatures in Nanmen, China

The warmest months in Nanmen are June, July and August, with daily mean temperatures ranging from 25 to 29 °C (77 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (45 - 48 °F) throughout the day. On average each year, Nanmen experiences 118 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nanmen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		25°C
(77°F)		30°C
(87°F)		32°C
(91°F)		35°C
(96°F)		36°C
(97°F)		38°C
(100°F)		38°C
(101°F)		35°C
(96°F)		34°C
(93°F)		24°C
(76°F)		17°C
(63°F)
Mean maximum14°C
(57°F)		19°C
(67°F)		27°C
(81°F)		31°C
(87°F)		33°C
(92°F)		33°C
(92°F)		37°C
(98°F)		37°C
(99°F)		34°C
(93°F)		29°C
(84°F)		23°C
(73°F)		15°C
(59°F)
Average high10°C
(50°F)		12°C
(54°F)		18°C
(65°F)		22°C
(73°F)		26°C
(78°F)		28°C
(83°F)		31°C
(89°F)		33°C
(91°F)		27°C
(81°F)		21°C
(69°F)		16°C
(61°F)		11°C
(52°F)
Daily mean7°C
(45°F)		9°C
(48°F)		14°C
(58°F)		18°C
(65°F)		22°C
(71°F)		25°C
(77°F)		28°C
(82°F)		29°C
(84°F)		24°C
(75°F)		18°C
(65°F)		13°C
(55°F)		8°C
(47°F)
Average low5°C
(41°F)		6°C
(43°F)		10°C
(51°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		24°C
(76°F)		25°C
(77°F)		21°C
(70°F)		16°C
(60°F)		10°C
(51°F)		6°C
(43°F)
Mean minimum0°C
(32°F)		1°C
(35°F)		6°C
(43°F)		10°C
(50°F)		14°C
(57°F)		18°C
(65°F)		22°C
(71°F)		21°C
(71°F)		17°C
(63°F)		11°C
(53°F)		5°C
(42°F)		1°C
(34°F)
Minimum-3°C
(27°F)		-1°C
(30°F)		5°C
(42°F)		8°C
(47°F)		12°C
(53°F)		15°C
(59°F)		20°C
(68°F)		17°C
(64°F)		16°C
(61°F)		10°C
(50°F)		4°C
(39°F)		-0°C
(32°F)

Compare climate in Nanmen with other places

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

Monthly average precipitation in Nanmen, China

Nanmen usually has the most precipitation in June, July and September, with an average of 18 rainy days and 230 mm (9.1 inches) of precipitation per month. The driest months in Nanmen are January, February and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nanmen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)42 (1.7)62 (2.4)118 (4.7)165 (6.5)162 (6.4)214 (8.4)265 (10.4)163 (6.4)211 (8.3)147 (5.8)71 (2.8)35 (1.4)
Average precipitation days (≥ 1 mm)891514161720141815109

Monthly sunshine hours in Nanmen, China

The sunniest months in Nanmen are June, July and August, when the sun shines an average of 9 hours 41 minutes a day. Least sunny months in Nanmen: January, October and December receive an average of 5 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nanmen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours146197228239259265307319232173185181
Mean daily daylight hours10h 22m11h 4m11h 59m12h 55m13h 42m14h 6m13h 54m13h 13m12h 19m11h 23m10h 34m10h 10m

Solar UV radiation in Nanmen, China

Nanmen experiences the highest level of ultraviolet (UV) radiation in June, July and September, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Nanmen UV Index data.

Average daily maximum UV levels by month for Nanmen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)568101112121111964