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Monthly climate in Heixi, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Heixi features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (40 °F) and 25 °C (78 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 1608 mm (63.3 inches) and receives 204 rainy days on the 1 mm (0.04 inches) threshold annually. Heixi enjoys an average of 2290 hours of sunshine throughout the year, and daylight varies from 10 hours 16 minutes to 13 hours 59 minutes per day.

Monthly average temperatures in Heixi, China

The warmest months in Heixi are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (73 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (40 - 43 °F) throughout the day. On average each year, Heixi experiences 92 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heixi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		23°C
(73°F)		27°C
(81°F)		30°C
(86°F)		32°C
(90°F)		32°C
(90°F)		34°C
(94°F)		36°C
(96°F)		33°C
(91°F)		30°C
(86°F)		21°C
(71°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)		34°C
(93°F)		30°C
(87°F)		26°C
(79°F)		20°C
(68°F)		13°C
(56°F)
Average high7°C
(44°F)		9°C
(49°F)		15°C
(59°F)		19°C
(67°F)		23°C
(74°F)		26°C
(79°F)		29°C
(84°F)		30°C
(86°F)		24°C
(76°F)		18°C
(65°F)		14°C
(57°F)		8°C
(47°F)
Daily mean4°C
(40°F)		6°C
(43°F)		11°C
(52°F)		15°C
(60°F)		19°C
(67°F)		23°C
(73°F)		25°C
(77°F)		25°C
(78°F)		21°C
(70°F)		16°C
(60°F)		11°C
(52°F)		6°C
(43°F)
Average low2°C
(36°F)		3°C
(38°F)		8°C
(47°F)		12°C
(54°F)		16°C
(61°F)		20°C
(68°F)		22°C
(72°F)		22°C
(72°F)		18°C
(65°F)		13°C
(56°F)		8°C
(47°F)		3°C
(39°F)
Mean minimum-2°C
(29°F)		-0°C
(32°F)		3°C
(39°F)		7°C
(46°F)		12°C
(53°F)		16°C
(61°F)		20°C
(68°F)		19°C
(66°F)		14°C
(57°F)		9°C
(48°F)		3°C
(38°F)		-2°C
(28°F)
Minimum-5°C
(24°F)		-2°C
(29°F)		3°C
(37°F)		6°C
(44°F)		9°C
(49°F)		14°C
(58°F)		18°C
(66°F)		16°C
(61°F)		12°C
(54°F)		7°C
(45°F)		3°C
(37°F)		-4°C
(25°F)

Compare climate in Heixi with other places

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

Monthly average precipitation in Heixi, China

Heixi usually has the most precipitation in May, June and July, with an average of 20 rainy days and 199 mm (7.8 inches) of precipitation per month. The driest months in Heixi are January, February and December. On average, 67 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heixi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)64 (2.5)79 (3.1)128 (5.0)130 (5.1)202 (8.0)198 (7.8)196 (7.7)150 (5.9)172 (6.8)136 (5.4)94 (3.7)59 (2.3)
Average precipitation days (≥ 1 mm)121518182019221920161312

Monthly sunshine hours in Heixi, China

The sunniest months in Heixi are June, July and August, when the sun shines an average of 8 hours 51 minutes a day. Least sunny months in Heixi: January, October and December receive an average of 4 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heixi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours104152168183219229283301208139152145
Mean daily daylight hours10h 28m11h 7m11h 59m12h 52m13h 37m13h 59m13h 48m13h 9m12h 18m11h 25m10h 39m10h 16m

Solar UV radiation in Heixi, China

Heixi 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 Heixi UV Index data.

Average daily maximum UV levels by month for Heixi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)7710111212131211975