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Monthly climate in Haimen, Zhejiang, China

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Haimen features a humid subtropical climate (Cfa).Temperatures typically range between 9 °C (49 °F) and 30 °C (86 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1540 mm (60.6 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually.Haimen enjoys an average of 2879 hours of sunshine throughout the year, and daylight varies from 10 hours 20 minutes to 13 hours 55 minutes per day.

Monthly average temperatures in Haimen, Zhejiang, China §

The warmest months in Haimen are July, August and September, with daily mean temperatures ranging from 27 to 30 °C (81 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 11 °C (49 - 52 °F) throughout the day. On average each year, Haimen experiences 137 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 Haimen, 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 23°C
(74°F)		 27°C
(81°F)		 29°C
(85°F)		 33°C
(91°F)		 34°C
(94°F)		 37°C
(99°F)		 39°C
(102°F)		 39°C
(102°F)		 38°C
(100°F)		 35°C
(96°F)		 30°C
(85°F)		 24°C
(75°F)
Mean maximum 21°C
(70°F)		 22°C
(72°F)		 25°C
(77°F)		 30°C
(86°F)		 32°C
(90°F)		 33°C
(92°F)		 37°C
(98°F)		 36°C
(98°F)		 35°C
(96°F)		 32°C
(89°F)		 26°C
(79°F)		 20°C
(69°F)
Average high 12°C
(54°F)		 13°C
(55°F)		 17°C
(64°F)		 22°C
(72°F)		 26°C
(79°F)		 29°C
(84°F)		 33°C
(91°F)		 33°C
(92°F)		 30°C
(86°F)		 25°C
(77°F)		 20°C
(68°F)		 14°C
(58°F)
Daily mean 9°C
(49°F)		 10°C
(50°F)		 14°C
(57°F)		 18°C
(65°F)		 23°C
(73°F)		 26°C
(78°F)		 29°C
(85°F)		 30°C
(86°F)		 27°C
(81°F)		 22°C
(71°F)		 17°C
(62°F)		 11°C
(52°F)
Average low 7°C
(44°F)		 7°C
(45°F)		 11°C
(53°F)		 15°C
(60°F)		 20°C
(68°F)		 23°C
(74°F)		 27°C
(81°F)		 27°C
(81°F)		 24°C
(76°F)		 19°C
(67°F)		 14°C
(58°F)		 8°C
(47°F)
Mean minimum -0°C
(32°F)		 3°C
(37°F)		 7°C
(44°F)		 9°C
(49°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 25°C
(78°F)		 21°C
(70°F)		 13°C
(56°F)		 9°C
(49°F)		 2°C
(35°F)
Minimum -3°C
(27°F)		 -1°C
(31°F)		 5°C
(41°F)		 8°C
(47°F)		 13°C
(56°F)		 19°C
(66°F)		 23°C
(74°F)		 24°C
(75°F)		 19°C
(67°F)		 12°C
(55°F)		 6°C
(44°F)		 -1°C
(31°F)

Compare climate in Haimen with other places

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

Monthly average precipitation in Haimen, Zhejiang, China §

Haimen usually has the most precipitation in June, July and August, with an average of 18 rainy days and 222 mm (8.7 inches) of precipitation per month.The driest months in Haimen are January, February and December. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Haimen, 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) 51 (2.0) 54 (2.1) 110 (4.3) 94 (3.7) 182 (7.2) 248 (9.8) 227 (8.9) 190 (7.5) 144 (5.7) 124 (4.9) 71 (2.8) 45 (1.8)
Average precipitation days (≥ 1 mm) 7 8 15 12 13 19 16 20 14 7 9 8

Monthly sunshine hours in Haimen, Zhejiang, China §

The sunniest months in Haimen are May, July and August, when the sun shines an average of 9 hours 20 minutes a day.Least sunny months in Haimen: January, February and December receive an average of 6 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Haimen, 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 165 200 232 258 271 228 287 309 263 239 213 208
Mean daily daylight hours 10h 31m 11h 9m 11h 59m 12h 51m 13h 34m 13h 55m 13h 44m 13h 7m 12h 18m 11h 27m 10h 42m 10h 20m

Solar UV radiation in Haimen, Zhejiang, China §

Haimen experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 12, 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 Haimen UV Index data.

Average daily maximum UV levels by month for Haimen, 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 7 9 10 12 12 12 12 11 9 7 5