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Monthly climate in Koujiang, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Koujiang features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (44 °F) and 27 °C (80 °F) through the year, but rarely can drop to -4 °C (25 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1705 mm (67.1 inches) and receives 211 rainy days on the 1 mm (0.04 inches) threshold annually. Koujiang enjoys an average of 2659 hours of sunshine throughout the year, and daylight varies from 10 hours 31 minutes to 13 hours 43 minutes per day.

Monthly average temperatures in Koujiang, China

The warmest months in Koujiang are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (44 - 48 °F) throughout the day. On average each year, Koujiang experiences 129 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Koujiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(67°F)		26°C
(79°F)		29°C
(85°F)		32°C
(90°F)		33°C
(92°F)		34°C
(93°F)		35°C
(95°F)		37°C
(99°F)		36°C
(97°F)		34°C
(93°F)		27°C
(81°F)		24°C
(76°F)
Mean maximum17°C
(64°F)		23°C
(74°F)		27°C
(81°F)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		34°C
(93°F)		35°C
(95°F)		34°C
(94°F)		31°C
(88°F)		25°C
(78°F)		20°C
(68°F)
Average high9°C
(49°F)		12°C
(54°F)		17°C
(64°F)		22°C
(71°F)		25°C
(78°F)		28°C
(83°F)		30°C
(87°F)		31°C
(88°F)		29°C
(84°F)		22°C
(71°F)		17°C
(63°F)		12°C
(53°F)
Daily mean7°C
(44°F)		9°C
(48°F)		14°C
(57°F)		18°C
(64°F)		22°C
(71°F)		25°C
(77°F)		27°C
(80°F)		27°C
(80°F)		25°C
(76°F)		18°C
(65°F)		13°C
(56°F)		8°C
(47°F)
Average low4°C
(40°F)		6°C
(42°F)		11°C
(51°F)		14°C
(57°F)		19°C
(66°F)		22°C
(72°F)		24°C
(75°F)		23°C
(75°F)		21°C
(70°F)		15°C
(60°F)		10°C
(50°F)		5°C
(41°F)
Mean minimum-2°C
(29°F)		0°C
(33°F)		5°C
(41°F)		7°C
(46°F)		14°C
(57°F)		18°C
(65°F)		21°C
(70°F)		21°C
(70°F)		17°C
(63°F)		10°C
(51°F)		5°C
(41°F)		-2°C
(29°F)
Minimum-4°C
(26°F)		-3°C
(27°F)		3°C
(37°F)		5°C
(42°F)		10°C
(51°F)		15°C
(60°F)		19°C
(67°F)		19°C
(67°F)		15°C
(60°F)		8°C
(47°F)		3°C
(38°F)		-4°C
(25°F)

Compare climate in Koujiang with other places

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

Monthly average precipitation in Koujiang, China

Koujiang usually has the most precipitation in May, June and July, with an average of 22 rainy days and 220 mm (8.7 inches) of precipitation per month. The driest months in Koujiang are January, November and December. On average, 83 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Koujiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)89 (3.5)103 (4.1)172 (6.8)174 (6.9)205 (8.1)249 (9.8)207 (8.1)133 (5.2)114 (4.5)99 (3.9)88 (3.5)72 (2.8)
Average precipitation days (≥ 1 mm)141623212223211915111412

Monthly sunshine hours in Koujiang, China

The sunniest months in Koujiang are July, August and September, when the sun shines an average of 9 hours 19 minutes a day. Least sunny months in Koujiang: January, February and March receive an average of 5 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Koujiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours139175188188258244287306263212197197
Mean daily daylight hours10h 41m11h 15m12h 0m12h 46m13h 24m13h 43m13h 34m13h 0m12h 16m11h 31m10h 51m10h 31m

Solar UV radiation in Koujiang, China

Koujiang experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Koujiang UV Index data.

Average daily maximum UV levels by month for Koujiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)79111113121313111086