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Monthly climate in Sishui, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sishui features a humid subtropical climate (Cwa). Temperatures typically range between 0 °C (32 °F) and 27 °C (81 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 780 mm (30.7 inches) and receives 70 rainy days on the 1 mm (0.04 inches) threshold annually. Sishui enjoys an average of 3169 hours of sunshine throughout the year, and daylight varies from 9 hours 46 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Sishui, China

The warmest months in Sishui are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (32 - 38 °F) throughout the day. On average each year, Sishui experiences 117 days above 25 °C (77.0 °F) and 77 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sishui. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		23°C
(74°F)		28°C
(82°F)		30°C
(87°F)		37°C
(98°F)		37°C
(99°F)		36°C
(98°F)		36°C
(97°F)		32°C
(90°F)		30°C
(87°F)		24°C
(76°F)		15°C
(59°F)
Mean maximum11°C
(52°F)		17°C
(64°F)		23°C
(74°F)		28°C
(82°F)		34°C
(93°F)		34°C
(94°F)		35°C
(95°F)		34°C
(94°F)		32°C
(89°F)		28°C
(82°F)		21°C
(70°F)		12°C
(55°F)
Average high5°C
(41°F)		8°C
(47°F)		15°C
(59°F)		20°C
(68°F)		26°C
(79°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		27°C
(81°F)		20°C
(68°F)		14°C
(58°F)		7°C
(44°F)
Daily mean0°C
(32°F)		3°C
(38°F)		10°C
(50°F)		15°C
(59°F)		21°C
(70°F)		26°C
(78°F)		27°C
(81°F)		26°C
(80°F)		22°C
(72°F)		15°C
(59°F)		9°C
(48°F)		2°C
(35°F)
Average low-4°C
(25°F)		-1°C
(30°F)		4°C
(40°F)		9°C
(49°F)		15°C
(60°F)		20°C
(69°F)		23°C
(74°F)		23°C
(73°F)		18°C
(65°F)		10°C
(50°F)		4°C
(39°F)		-3°C
(28°F)
Mean minimum-10°C
(14°F)		-7°C
(20°F)		-2°C
(28°F)		2°C
(36°F)		9°C
(48°F)		15°C
(60°F)		20°C
(68°F)		18°C
(64°F)		13°C
(56°F)		2°C
(36°F)		-3°C
(27°F)		-10°C
(15°F)
Minimum-18°C
(0°F)		-11°C
(12°F)		-4°C
(25°F)		-0°C
(31°F)		6°C
(43°F)		13°C
(56°F)		18°C
(64°F)		16°C
(60°F)		11°C
(53°F)		1°C
(34°F)		-5°C
(24°F)		-12°C
(11°F)

Compare climate in Sishui with other places

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

Monthly average precipitation in Sishui, China

Sishui usually has the most precipitation in June, July and August, with an average of 11 rainy days and 162 mm (6.4 inches) of precipitation per month. The driest months in Sishui are January, February and December. On average, 14 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sishui. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)13 (0.5)20 (0.8)24 (1.0)36 (1.4)49 (1.9)90 (3.6)180 (7.1)215 (8.5)78 (3.1)30 (1.2)34 (1.4)10 (0.4)
Average precipitation days (≥ 1 mm)22465713146542

Monthly sunshine hours in Sishui, China

The sunniest months in Sishui are May, June and July, when the sun shines an average of 10 hours 4 minutes a day. Least sunny months in Sishui: January, October and November receive an average of 7 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sishui. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours197237277275314302308287261233229242
Mean daily daylight hours10h 1m10h 52m11h 58m13h 5m14h 2m14h 30m14h 16m13h 26m12h 22m11h 15m10h 16m9h 46m

Solar UV radiation in Sishui, China

Sishui experiences the highest level of ultraviolet (UV) radiation in June, July and August, 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 4. For more detailed information, check out our hourly Sishui UV Index data.

Average daily maximum UV levels by month for Sishui. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356891110109743