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Monthly climate in Hekou, Jiangsu, China

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hekou features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (40 °F) and 28 °C (83 °F) through the year, but rarely can drop to -9 °C (17 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 1176 mm (46.3 inches) and receives 112 rainy days on the 1 mm (0.04 inches) threshold annually.Hekou enjoys an average of 3031 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 14 minutes per day.

Monthly average temperatures in Hekou, Jiangsu, China §

The warmest months in Hekou are July, August and September, with daily mean temperatures ranging from 24 to 28 °C (76 - 83 °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 - 44 °F) throughout the day. On average each year, Hekou experiences 117 days above 25 °C (77.0 °F) and 25 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hekou, Jiangsu, 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 15°C
(60°F)		 23°C
(74°F)		 27°C
(81°F)		 30°C
(86°F)		 34°C
(93°F)		 36°C
(97°F)		 38°C
(100°F)		 37°C
(98°F)		 34°C
(94°F)		 32°C
(89°F)		 27°C
(81°F)		 19°C
(67°F)
Mean maximum 13°C
(56°F)		 18°C
(65°F)		 24°C
(75°F)		 28°C
(82°F)		 32°C
(89°F)		 33°C
(91°F)		 36°C
(96°F)		 35°C
(95°F)		 32°C
(90°F)		 28°C
(83°F)		 23°C
(74°F)		 17°C
(62°F)
Average high 7°C
(46°F)		 9°C
(49°F)		 15°C
(58°F)		 19°C
(67°F)		 25°C
(77°F)		 28°C
(82°F)		 31°C
(88°F)		 31°C
(89°F)		 27°C
(82°F)		 22°C
(72°F)		 17°C
(63°F)		 10°C
(51°F)
Daily mean 4°C
(40°F)		 5°C
(42°F)		 10°C
(51°F)		 15°C
(59°F)		 20°C
(69°F)		 24°C
(76°F)		 28°C
(82°F)		 28°C
(83°F)		 24°C
(76°F)		 18°C
(65°F)		 13°C
(56°F)		 6°C
(44°F)
Average low 1°C
(35°F)		 2°C
(36°F)		 7°C
(44°F)		 11°C
(52°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(77°F)		 26°C
(78°F)		 22°C
(71°F)		 15°C
(59°F)		 9°C
(49°F)		 3°C
(37°F)
Mean minimum -6°C
(22°F)		 -3°C
(27°F)		 1°C
(35°F)		 4°C
(40°F)		 11°C
(52°F)		 17°C
(64°F)		 21°C
(71°F)		 23°C
(73°F)		 17°C
(63°F)		 9°C
(48°F)		 3°C
(37°F)		 -4°C
(25°F)
Minimum -9°C
(17°F)		 -5°C
(24°F)		 -0°C
(32°F)		 3°C
(38°F)		 9°C
(49°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(71°F)		 15°C
(59°F)		 8°C
(46°F)		 1°C
(33°F)		 -7°C
(19°F)

Compare climate in Hekou with other places

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

Monthly average precipitation in Hekou, Jiangsu, China §

Hekou usually has the most precipitation in June, July and August, with an average of 13 rainy days and 188 mm (7.4 inches) of precipitation per month.The driest months in Hekou are January, February and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hekou, Jiangsu, 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) 46 (1.8) 48 (1.9) 55 (2.2) 69 (2.7) 122 (4.8) 135 (5.3) 241 (9.5) 188 (7.4) 120 (4.7) 59 (2.3) 50 (2.0) 44 (1.7)
Average precipitation days (≥ 1 mm) 7 8 8 9 8 8 17 15 11 7 7 7

Monthly sunshine hours in Hekou, Jiangsu, China §

The sunniest months in Hekou are May, June and August, when the sun shines an average of 9 hours 35 minutes a day.Least sunny months in Hekou: January, February and December receive an average of 6 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hekou, Jiangsu, 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 166 217 254 264 288 286 286 307 268 246 225 219
Mean daily daylight hours 10h 15m 11h 0m 11h 59m 12h 58m 13h 49m 14h 14m 14h 1m 13h 17m 12h 20m 11h 20m 10h 28m 10h 2m

Solar UV radiation in Hekou, Jiangsu, China §

Hekou experiences the highest level of ultraviolet (UV) radiation in April, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 6. For more detailed information, check out our hourly Hekou UV Index data.

Average daily maximum UV levels by month for Hekou, Jiangsu, 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) 4 6 8 10 10 10 11 11 10 8 6 4