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Monthly climate in Haishan, Zhejiang, China

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Haishan features a humid subtropical climate (Cfa). Temperatures typically range between 10 °C (50 °F) and 30 °C (85 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1419 mm (55.9 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually. Haishan enjoys an average of 2841 hours of sunshine throughout the year, and daylight varies from 10 hours 22 minutes to 13 hours 53 minutes per day.

Monthly average temperatures in Haishan, Zhejiang, China §

The warmest months in Haishan are July, August and September, with daily mean temperatures ranging from 27 to 30 °C (81 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 53 °F) throughout the day. On average each year, Haishan experiences 146 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Haishan, Zhejiang, China. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 25°C
(77°F)		 26°C
(80°F)		 28°C
(83°F)		 31°C
(87°F)		 37°C
(99°F)		 35°C
(96°F)		 38°C
(101°F)		 40°C
(104°F)		 38°C
(100°F)		 34°C
(93°F)		 29°C
(85°F)		 26°C
(80°F)
Mean maximum 22°C
(71°F)		 22°C
(72°F)		 25°C
(77°F)		 29°C
(84°F)		 32°C
(90°F)		 33°C
(91°F)		 36°C
(97°F)		 37°C
(99°F)		 36°C
(96°F)		 32°C
(91°F)		 28°C
(82°F)		 23°C
(74°F)
Average high 13°C
(56°F)		 14°C
(57°F)		 18°C
(65°F)		 23°C
(73°F)		 27°C
(80°F)		 29°C
(84°F)		 33°C
(91°F)		 33°C
(92°F)		 31°C
(88°F)		 26°C
(79°F)		 21°C
(70°F)		 15°C
(60°F)
Daily mean 10°C
(50°F)		 10°C
(51°F)		 14°C
(58°F)		 18°C
(65°F)		 23°C
(73°F)		 26°C
(78°F)		 29°C
(85°F)		 30°C
(85°F)		 27°C
(81°F)		 22°C
(72°F)		 17°C
(63°F)		 12°C
(53°F)
Average low 7°C
(44°F)		 7°C
(45°F)		 11°C
(52°F)		 15°C
(59°F)		 19°C
(67°F)		 23°C
(74°F)		 27°C
(80°F)		 27°C
(81°F)		 24°C
(76°F)		 19°C
(67°F)		 14°C
(58°F)		 9°C
(48°F)
Mean minimum -1°C
(31°F)		 2°C
(36°F)		 5°C
(41°F)		 8°C
(47°F)		 13°C
(56°F)		 19°C
(66°F)		 25°C
(76°F)		 25°C
(77°F)		 20°C
(69°F)		 13°C
(56°F)		 9°C
(48°F)		 2°C
(35°F)
Minimum -3°C
(27°F)		 -2°C
(29°F)		 3°C
(37°F)		 7°C
(45°F)		 10°C
(51°F)		 17°C
(63°F)		 23°C
(74°F)		 24°C
(75°F)		 19°C
(66°F)		 11°C
(51°F)		 5°C
(41°F)		 -0°C
(32°F)

Compare climate in Haishan with other places

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

Monthly average precipitation in Haishan, Zhejiang, China §

Haishan usually has the most precipitation in June, July and August, with an average of 17 rainy days and 216 mm (8.5 inches) of precipitation per month. The driest months in Haishan are January, February and December. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Haishan, Zhejiang, China. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 39 (1.5) 49 (1.9) 95 (3.7) 86 (3.4) 152 (6.0) 246 (9.7) 197 (7.7) 207 (8.1) 118 (4.6) 123 (4.9) 71 (2.8) 37 (1.5)
Average precipitation days (≥ 1 mm) 7 8 14 11 14 17 16 19 12 8 9 7

Monthly sunshine hours in Haishan, Zhejiang, China §

The sunniest months in Haishan are May, July and August, when the sun shines an average of 9 hours 6 minutes a day. Least sunny months in Haishan: January, February and June receive an average of 6 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Haishan, Zhejiang, China. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 170 205 231 249 261 212 284 302 260 235 212 215
Mean daily daylight hours 10h 33m 11h 10m 11h 59m 12h 50m 13h 32m 13h 53m 13h 42m 13h 6m 12h 17m 11h 27m 10h 44m 10h 22m

Solar UV radiation in Haishan, Zhejiang, China §

Haishan 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, November 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 Haishan UV Index data.

Average daily maximum UV levels by month for Haishan, Zhejiang, China. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 6 8 10 11 12 12 12 13 11 8 7 5

Detailed Monthly Weather Insights for Haishan, Zhejiang, China

Discover in-depth weather details for every month in Haishan. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Haishan's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.