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Monthly climate in Dongtan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Dongtan features a ice cap climate ET). Temperatures typically range between -17 °C (2 °F) and 10 °C (51 °F) through the year, but rarely can drop to -37 °C (-34 °F) or can rise to as high as 21 °C (70 °F). The average annual precipitation amounts to about 754 mm (29.7 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually. Dongtan enjoys an average of 3605 hours of sunshine throughout the year, and daylight varies from 9 hours 34 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Dongtan, China

The warmest months in Dongtan are June, July and August, with daily mean temperatures ranging from 8 to 10 °C (46 - 51 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -17 to -14 °C (2 - 7 °F) throughout the day. On average each year, Dongtan experiences 0 days above 25 °C (77.0 °F) and 233 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dongtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(36°F)		6°C
(44°F)		11°C
(53°F)		16°C
(61°F)		20°C
(68°F)		19°C
(66°F)		21°C
(70°F)		20°C
(69°F)		18°C
(65°F)		16°C
(60°F)		9°C
(48°F)		1°C
(35°F)
Mean maximum-2°C
(29°F)		1°C
(35°F)		7°C
(45°F)		13°C
(55°F)		17°C
(63°F)		17°C
(63°F)		20°C
(69°F)		19°C
(67°F)		17°C
(62°F)		13°C
(55°F)		5°C
(41°F)		-2°C
(28°F)
Average high-8°C
(18°F)		-6°C
(22°F)		-0°C
(32°F)		4°C
(39°F)		9°C
(48°F)		13°C
(55°F)		15°C
(60°F)		14°C
(58°F)		11°C
(53°F)		4°C
(39°F)		-3°C
(28°F)		-8°C
(17°F)
Daily mean-17°C
(2°F)		-14°C
(7°F)		-7°C
(20°F)		-2°C
(29°F)		3°C
(38°F)		8°C
(46°F)		10°C
(51°F)		9°C
(49°F)		6°C
(42°F)		-3°C
(27°F)		-10°C
(14°F)		-17°C
(2°F)
Average low-24°C
(-12°F)		-22°C
(-8°F)		-14°C
(8°F)		-8°C
(19°F)		-3°C
(27°F)		3°C
(37°F)		5°C
(42°F)		5°C
(41°F)		1°C
(34°F)		-8°C
(18°F)		-17°C
(2°F)		-24°C
(-11°F)
Mean minimum-33°C
(-27°F)		-31°C
(-24°F)		-25°C
(-13°F)		-17°C
(2°F)		-12°C
(10°F)		-2°C
(28°F)		1°C
(35°F)		0°C
(32°F)		-4°C
(24°F)		-17°C
(1°F)		-27°C
(-16°F)		-32°C
(-26°F)
Minimum-36°C
(-33°F)		-37°C
(-34°F)		-29°C
(-20°F)		-23°C
(-9°F)		-18°C
(1°F)		-5°C
(24°F)		-0°C
(32°F)		-2°C
(28°F)		-6°C
(21°F)		-23°C
(-9°F)		-32°C
(-25°F)		-34°C
(-29°F)

Compare climate in Dongtan with other places

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

Monthly average precipitation in Dongtan, China

Dongtan usually has the most precipitation in July, August and September, with an average of 20 rainy days and 134 mm (5.3 inches) of precipitation per month. The driest months in Dongtan are January, February and December. On average, 9 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dongtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)8 (0.3)10 (0.4)22 (0.9)55 (2.1)72 (2.8)112 (4.4)119 (4.7)159 (6.3)125 (4.9)51 (2.0)13 (0.5)8 (0.3)
Average precipitation days (≥ 1 mm)2381114201823191152

Monthly sunshine hours in Dongtan, China

The sunniest months in Dongtan are March, May and July, when the sun shines an average of 10 hours 48 minutes a day. Least sunny months in Dongtan: January, February and December receive an average of 8 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dongtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours228279322309332311351320289297283280
Mean daily daylight hours9h 51m10h 46m11h 57m13h 10m14h 12m14h 43m14h 27m13h 33m12h 23m11h 11m10h 7m9h 34m

Solar UV radiation in Dongtan, China

Dongtan experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 14 - 18, 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 6. For more detailed information, check out our hourly Dongtan UV Index data.

Average daily maximum UV levels by month for Dongtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3710131418161311964