nomadseason

Monthly climate in Longtan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Longtan features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (39 °F) and 28 °C (84 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1159 mm (45.6 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Longtan enjoys an average of 2985 hours of sunshine throughout the year, and daylight varies from 10 hours 3 minutes to 14 hours 12 minutes per day.

Monthly average temperatures in Longtan, China

The warmest months in Longtan are June, July and August, with daily mean temperatures ranging from 25 to 28 °C (78 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 42 °F) throughout the day. On average each year, Longtan experiences 128 days above 25 °C (77.0 °F) and 26 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Longtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(64°F)		26°C
(78°F)		28°C
(84°F)		31°C
(89°F)		35°C
(96°F)		35°C
(95°F)		38°C
(101°F)		37°C
(99°F)		36°C
(97°F)		34°C
(93°F)		28°C
(83°F)		19°C
(67°F)
Mean maximum14°C
(58°F)		20°C
(69°F)		26°C
(78°F)		29°C
(85°F)		33°C
(92°F)		34°C
(93°F)		36°C
(97°F)		36°C
(97°F)		33°C
(91°F)		30°C
(86°F)		25°C
(77°F)		16°C
(62°F)
Average high7°C
(45°F)		10°C
(50°F)		16°C
(61°F)		21°C
(70°F)		26°C
(79°F)		29°C
(85°F)		31°C
(89°F)		32°C
(90°F)		28°C
(83°F)		22°C
(72°F)		17°C
(63°F)		10°C
(50°F)
Daily mean4°C
(39°F)		6°C
(42°F)		12°C
(53°F)		16°C
(62°F)		22°C
(71°F)		25°C
(78°F)		28°C
(83°F)		28°C
(84°F)		24°C
(76°F)		18°C
(64°F)		12°C
(55°F)		6°C
(42°F)
Average low1°C
(33°F)		2°C
(35°F)		7°C
(45°F)		12°C
(53°F)		17°C
(63°F)		21°C
(71°F)		25°C
(77°F)		26°C
(78°F)		21°C
(70°F)		14°C
(57°F)		8°C
(47°F)		2°C
(36°F)
Mean minimum-6°C
(21°F)		-4°C
(25°F)		1°C
(35°F)		5°C
(42°F)		12°C
(53°F)		18°C
(64°F)		22°C
(72°F)		22°C
(72°F)		17°C
(62°F)		8°C
(47°F)		2°C
(36°F)		-4°C
(24°F)
Minimum-10°C
(14°F)		-12°C
(11°F)		-1°C
(30°F)		4°C
(40°F)		10°C
(50°F)		17°C
(62°F)		20°C
(68°F)		21°C
(71°F)		16°C
(60°F)		7°C
(46°F)		0°C
(32°F)		-7°C
(20°F)

Compare climate in Longtan with other places

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

Monthly average precipitation in Longtan, China

Longtan usually has the most precipitation in June, July and August, with an average of 14 rainy days and 190 mm (7.5 inches) of precipitation per month. The driest months in Longtan are February, November and December. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)50 (2.0)48 (1.9)60 (2.3)62 (2.5)142 (5.6)158 (6.2)243 (9.6)169 (6.6)92 (3.6)56 (2.2)42 (1.6)39 (1.5)
Average precipitation days (≥ 1 mm)789999181510757

Monthly sunshine hours in Longtan, China

The sunniest months in Longtan are June, July and August, when the sun shines an average of 9 hours 32 minutes a day. Least sunny months in Longtan: January, February and December receive an average of 6 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours164221247246278284291302263238225222
Mean daily daylight hours10h 16m11h 1m11h 59m12h 58m13h 48m14h 12m14h 0m13h 16m12h 20m11h 21m10h 30m10h 3m

Solar UV radiation in Longtan, China

Longtan experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Longtan UV Index data.

Average daily maximum UV levels by month for Longtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468101011111010854