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Monthly climate in Haishiwan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Haishiwan features a humid continental climate (Dwb). Temperatures typically range between -8 °C (17 °F) and 19 °C (66 °F) through the year, but rarely can drop to -30 °C (-21 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 626 mm (24.7 inches) and receives 105 rainy days on the 1 mm (0.04 inches) threshold annually. Haishiwan enjoys an average of 3494 hours of sunshine throughout the year, and daylight varies from 9 hours 42 minutes to 14 hours 34 minutes per day.

Monthly average temperatures in Haishiwan, China

The warmest months in Haishiwan are June, July and August, with daily mean temperatures ranging from 16 to 19 °C (61 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 24 °F) throughout the day. On average each year, Haishiwan experiences 23 days above 25 °C (77.0 °F) and 156 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Haishiwan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		15°C
(59°F)		21°C
(70°F)		26°C
(80°F)		29°C
(84°F)		28°C
(82°F)		32°C
(89°F)		31°C
(88°F)		26°C
(79°F)		23°C
(74°F)		18°C
(64°F)		10°C
(50°F)
Mean maximum7°C
(45°F)		11°C
(52°F)		18°C
(65°F)		23°C
(74°F)		26°C
(80°F)		26°C
(79°F)		30°C
(85°F)		28°C
(83°F)		24°C
(75°F)		21°C
(69°F)		16°C
(60°F)		7°C
(45°F)
Average high-1°C
(31°F)		3°C
(37°F)		10°C
(50°F)		14°C
(58°F)		18°C
(65°F)		21°C
(70°F)		24°C
(75°F)		22°C
(72°F)		18°C
(65°F)		12°C
(54°F)		6°C
(43°F)		-0°C
(32°F)
Daily mean-8°C
(17°F)		-5°C
(24°F)		3°C
(37°F)		8°C
(46°F)		12°C
(54°F)		16°C
(61°F)		19°C
(66°F)		17°C
(63°F)		13°C
(55°F)		6°C
(44°F)		-1°C
(30°F)		-8°C
(19°F)
Average low-15°C
(5°F)		-12°C
(11°F)		-4°C
(25°F)		1°C
(35°F)		6°C
(44°F)		11°C
(52°F)		13°C
(56°F)		12°C
(55°F)		8°C
(47°F)		1°C
(35°F)		-7°C
(19°F)		-14°C
(8°F)
Mean minimum-21°C
(-6°F)		-20°C
(-3°F)		-11°C
(12°F)		-5°C
(24°F)		1°C
(33°F)		7°C
(44°F)		9°C
(48°F)		7°C
(45°F)		4°C
(39°F)		-5°C
(24°F)		-14°C
(7°F)		-21°C
(-5°F)
Minimum-28°C
(-17°F)		-30°C
(-21°F)		-17°C
(1°F)		-9°C
(16°F)		-1°C
(30°F)		4°C
(39°F)		7°C
(46°F)		5°C
(42°F)		3°C
(38°F)		-6°C
(21°F)		-21°C
(-5°F)		-27°C
(-17°F)

Compare climate in Haishiwan with other places

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

Monthly average precipitation in Haishiwan, China

Haishiwan usually has the most precipitation in July, August and September, with an average of 15 rainy days and 104 mm (4.1 inches) of precipitation per month. The driest months in Haishiwan are January, February and December. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Haishiwan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)7 (0.3)8 (0.3)18 (0.7)58 (2.3)78 (3.1)74 (2.9)95 (3.7)123 (4.8)96 (3.8)49 (1.9)15 (0.6)6 (0.2)
Average precipitation days (≥ 1 mm)2241111131416171041

Monthly sunshine hours in Haishiwan, China

The sunniest months in Haishiwan are May, June and July, when the sun shines an average of 10 hours 42 minutes a day. Least sunny months in Haishiwan: January, October and November receive an average of 8 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Haishiwan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours226273310286325312347312282268272274
Mean daily daylight hours9h 58m10h 50m11h 58m13h 7m14h 5m14h 34m14h 20m13h 28m12h 22m11h 13m10h 13m9h 42m

Solar UV radiation in Haishiwan, China

Haishiwan 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 exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Haishiwan UV Index data.

Average daily maximum UV levels by month for Haishiwan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)358101212131210853