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Monthly climate in Heishui, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Heishui features a humid subtropical climate (Cfa). Temperatures typically range between 3 °C (38 °F) and 25 °C (77 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 2077 mm (81.8 inches) and receives 208 rainy days on the 1 mm (0.04 inches) threshold annually. Heishui enjoys an average of 2290 hours of sunshine throughout the year, and daylight varies from 10 hours 19 minutes to 13 hours 56 minutes per day.

Monthly average temperatures in Heishui, China

The warmest months in Heishui are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 5 °C (38 - 41 °F) throughout the day. On average each year, Heishui experiences 89 days above 25 °C (77.0 °F) and 19 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heishui. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		23°C
(73°F)		27°C
(80°F)		29°C
(85°F)		32°C
(90°F)		32°C
(90°F)		34°C
(93°F)		35°C
(95°F)		32°C
(91°F)		30°C
(86°F)		22°C
(72°F)		17°C
(63°F)
Mean maximum12°C
(54°F)		17°C
(63°F)		24°C
(76°F)		28°C
(82°F)		31°C
(87°F)		30°C
(87°F)		33°C
(92°F)		33°C
(92°F)		30°C
(87°F)		27°C
(80°F)		20°C
(69°F)		13°C
(56°F)
Average high5°C
(42°F)		8°C
(47°F)		14°C
(57°F)		19°C
(66°F)		23°C
(73°F)		26°C
(78°F)		29°C
(84°F)		29°C
(85°F)		24°C
(75°F)		18°C
(64°F)		13°C
(56°F)		8°C
(46°F)
Daily mean3°C
(38°F)		5°C
(41°F)		10°C
(51°F)		15°C
(59°F)		19°C
(66°F)		22°C
(72°F)		25°C
(77°F)		25°C
(77°F)		21°C
(70°F)		15°C
(59°F)		10°C
(51°F)		5°C
(41°F)
Average low1°C
(34°F)		2°C
(37°F)		7°C
(45°F)		11°C
(53°F)		16°C
(60°F)		19°C
(67°F)		22°C
(71°F)		22°C
(71°F)		18°C
(65°F)		13°C
(55°F)		8°C
(46°F)		2°C
(37°F)
Mean minimum-3°C
(26°F)		-1°C
(30°F)		2°C
(37°F)		7°C
(45°F)		12°C
(53°F)		16°C
(61°F)		19°C
(67°F)		19°C
(66°F)		14°C
(58°F)		8°C
(46°F)		2°C
(36°F)		-3°C
(27°F)
Minimum-7°C
(19°F)		-4°C
(26°F)		1°C
(35°F)		6°C
(43°F)		9°C
(48°F)		14°C
(58°F)		18°C
(64°F)		16°C
(60°F)		13°C
(55°F)		7°C
(45°F)		1°C
(35°F)		-7°C
(20°F)

Compare climate in Heishui with other places

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

Monthly average precipitation in Heishui, China

Heishui usually has the most precipitation in May, June and July, with an average of 21 rainy days and 278 mm (11.0 inches) of precipitation per month. The driest months in Heishui are January, February and December. On average, 78 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heishui. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)84 (3.3)93 (3.7)184 (7.2)177 (7.0)277 (10.9)271 (10.7)287 (11.3)194 (7.7)218 (8.6)134 (5.3)98 (3.9)59 (2.3)
Average precipitation days (≥ 1 mm)111520182120232219161211

Monthly sunshine hours in Heishui, China

The sunniest months in Heishui are June, July and August, when the sun shines an average of 8 hours 54 minutes a day. Least sunny months in Heishui: January, October and December receive an average of 4 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heishui. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours108147164177228230287301207138155143
Mean daily daylight hours10h 30m11h 9m11h 59m12h 51m13h 35m13h 56m13h 45m13h 7m12h 18m11h 26m10h 41m10h 19m

Solar UV radiation in Heishui, China

Heishui experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Heishui UV Index data.

Average daily maximum UV levels by month for Heishui. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6710111212131211975