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Monthly climate in Sanjiang, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sanjiang features a humid subtropical climate (Cfa). Temperatures typically range between 10 °C (50 °F) and 27 °C (82 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1707 mm (67.2 inches) and receives 192 rainy days on the 1 mm (0.04 inches) threshold annually. Sanjiang enjoys an average of 2826 hours of sunshine throughout the year, and daylight varies from 10 hours 37 minutes to 13 hours 37 minutes per day.

Monthly average temperatures in Sanjiang, China

The warmest months in Sanjiang are July, August and September, with daily mean temperatures ranging from 26 to 27 °C (79 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 11 °C (50 - 52 °F) throughout the day. On average each year, Sanjiang experiences 149 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sanjiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum23°C
(73°F)		27°C
(80°F)		29°C
(84°F)		30°C
(87°F)		33°C
(92°F)		33°C
(92°F)		36°C
(96°F)		36°C
(97°F)		37°C
(98°F)		34°C
(93°F)		29°C
(84°F)		24°C
(76°F)
Mean maximum22°C
(71°F)		24°C
(76°F)		26°C
(80°F)		29°C
(85°F)		32°C
(90°F)		32°C
(90°F)		35°C
(96°F)		35°C
(96°F)		35°C
(95°F)		32°C
(90°F)		27°C
(81°F)		23°C
(73°F)
Average high13°C
(56°F)		15°C
(59°F)		19°C
(67°F)		23°C
(73°F)		27°C
(81°F)		29°C
(85°F)		31°C
(89°F)		32°C
(90°F)		31°C
(87°F)		24°C
(76°F)		20°C
(69°F)		15°C
(58°F)
Daily mean10°C
(50°F)		11°C
(52°F)		16°C
(61°F)		19°C
(66°F)		23°C
(74°F)		26°C
(79°F)		27°C
(82°F)		27°C
(82°F)		26°C
(79°F)		20°C
(69°F)		16°C
(61°F)		10°C
(51°F)
Average low6°C
(44°F)		8°C
(46°F)		13°C
(55°F)		16°C
(60°F)		20°C
(69°F)		23°C
(74°F)		24°C
(76°F)		24°C
(76°F)		23°C
(73°F)		17°C
(63°F)		13°C
(55°F)		7°C
(45°F)
Mean minimum0°C
(33°F)		2°C
(36°F)		7°C
(45°F)		10°C
(49°F)		15°C
(60°F)		20°C
(69°F)		22°C
(72°F)		22°C
(72°F)		19°C
(67°F)		12°C
(54°F)		7°C
(45°F)		1°C
(34°F)
Minimum-1°C
(30°F)		-2°C
(28°F)		5°C
(41°F)		7°C
(45°F)		12°C
(54°F)		16°C
(62°F)		21°C
(70°F)		21°C
(70°F)		17°C
(63°F)		10°C
(51°F)		6°C
(44°F)		-0°C
(32°F)

Compare climate in Sanjiang with other places

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

Monthly average precipitation in Sanjiang, China

Sanjiang usually has the most precipitation in March, April and June, with an average of 22 rainy days and 245 mm (9.6 inches) of precipitation per month. The driest months in Sanjiang are January, October and December. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sanjiang. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)76 (3.0)140 (5.5)253 (9.9)220 (8.7)181 (7.1)262 (10.3)129 (5.1)134 (5.3)103 (4.0)73 (2.9)83 (3.2)55 (2.1)
Average precipitation days (≥ 1 mm)10122320222417191491111

Monthly sunshine hours in Sanjiang, China

The sunniest months in Sanjiang are July, August and September, when the sun shines an average of 9 hours 42 minutes a day. Least sunny months in Sanjiang: January, March and April receive an average of 5 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sanjiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours165204180189260245304310278240222223
Mean daily daylight hours10h 46m11h 18m12h 0m12h 43m13h 19m13h 37m13h 28m12h 57m12h 16m11h 33m10h 56m10h 37m

Solar UV radiation in Sanjiang, China

Sanjiang 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 Sanjiang UV Index data.

Average daily maximum UV levels by month for Sanjiang. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)79111213131313111086