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Monthly climate in Jiujiang, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Jiujiang features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (42 °F) and 30 °C (85 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 1658 mm (65.3 inches) and receives 144 rainy days on the 1 mm (0.04 inches) threshold annually. Jiujiang enjoys an average of 2878 hours of sunshine throughout the year, and daylight varies from 10 hours 15 minutes to 14 hours 1 minutes per day.

Monthly average temperatures in Jiujiang, China

The warmest months in Jiujiang are June, July and August, with daily mean temperatures ranging from 26 to 30 °C (80 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (42 - 46 °F) throughout the day. On average each year, Jiujiang experiences 134 days above 25 °C (77.0 °F) and 7 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jiujiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(68°F)		25°C
(77°F)		28°C
(83°F)		31°C
(89°F)		35°C
(95°F)		36°C
(96°F)		39°C
(102°F)		37°C
(99°F)		35°C
(96°F)		35°C
(95°F)		26°C
(79°F)		20°C
(68°F)
Mean maximum16°C
(61°F)		20°C
(68°F)		25°C
(78°F)		29°C
(85°F)		33°C
(91°F)		33°C
(92°F)		37°C
(98°F)		36°C
(97°F)		34°C
(94°F)		31°C
(89°F)		24°C
(76°F)		17°C
(63°F)
Average high8°C
(47°F)		10°C
(51°F)		16°C
(62°F)		22°C
(72°F)		27°C
(80°F)		29°C
(85°F)		32°C
(90°F)		33°C
(91°F)		29°C
(85°F)		22°C
(72°F)		18°C
(64°F)		11°C
(52°F)
Daily mean6°C
(42°F)		7°C
(45°F)		13°C
(56°F)		18°C
(65°F)		23°C
(74°F)		26°C
(80°F)		29°C
(85°F)		30°C
(85°F)		26°C
(78°F)		19°C
(66°F)		14°C
(57°F)		8°C
(46°F)
Average low3°C
(38°F)		4°C
(40°F)		10°C
(50°F)		15°C
(58°F)		20°C
(68°F)		24°C
(75°F)		27°C
(80°F)		27°C
(81°F)		23°C
(73°F)		16°C
(61°F)		11°C
(52°F)		5°C
(41°F)
Mean minimum-2°C
(28°F)		0°C
(33°F)		5°C
(42°F)		9°C
(49°F)		16°C
(61°F)		20°C
(69°F)		23°C
(74°F)		23°C
(74°F)		19°C
(66°F)		11°C
(53°F)		6°C
(42°F)		-1°C
(30°F)
Minimum-5°C
(23°F)		-3°C
(28°F)		4°C
(40°F)		8°C
(47°F)		14°C
(57°F)		19°C
(66°F)		22°C
(72°F)		22°C
(72°F)		17°C
(62°F)		10°C
(51°F)		4°C
(40°F)		-3°C
(27°F)

Compare climate in Jiujiang with other places

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

Monthly average precipitation in Jiujiang, China

Jiujiang usually has the most precipitation in May, June and July, with an average of 16 rainy days and 259 mm (10.2 inches) of precipitation per month. The driest months in Jiujiang are October, November and December. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jiujiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)67 (2.6)93 (3.7)165 (6.5)156 (6.1)194 (7.6)293 (11.5)290 (11.4)151 (6.0)124 (4.9)34 (1.4)46 (1.8)45 (1.8)
Average precipitation days (≥ 1 mm)81115131419161411698

Monthly sunshine hours in Jiujiang, China

The sunniest months in Jiujiang are July, August and September, when the sun shines an average of 9 hours 32 minutes a day. Least sunny months in Jiujiang: January, February and November receive an average of 6 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jiujiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours152193215245271261295309271230215216
Mean daily daylight hours10h 27m11h 7m11h 59m12h 53m13h 38m14h 1m13h 49m13h 10m12h 18m11h 25m10h 38m10h 15m

Solar UV radiation in Jiujiang, China

Jiujiang experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 12, 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 6. For more detailed information, check out our hourly Jiujiang UV Index data.

Average daily maximum UV levels by month for Jiujiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)679101112121210865