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Monthly climate in Reyu, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Reyu features a subarctic climate (Dwc). Temperatures typically range between -20 °C (-4 °F) and 10 °C (49 °F) through the year, but rarely can drop to -40 °C (-40 °F) or can rise to as high as 18 °C (65 °F). The average annual precipitation amounts to about 1029 mm (40.5 inches) and receives 183 rainy days on the 1 mm (0.04 inches) threshold annually. Reyu enjoys an average of 3717 hours of sunshine throughout the year, and daylight varies from 10 hours 8 minutes to 14 hours 7 minutes per day.

Monthly average temperatures in Reyu, China

The warmest months in Reyu are July, August and September, with daily mean temperatures ranging from 7 to 10 °C (45 - 49 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -20 to -16 °C (-4 - 3 °F) throughout the day. On average each year, Reyu experiences 0 days above 25 °C (77.0 °F) and 223 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Reyu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-5°C
(23°F)		-3°C
(26°F)		2°C
(35°F)		5°C
(41°F)		14°C
(57°F)		16°C
(62°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		15°C
(58°F)		4°C
(39°F)		-3°C
(26°F)
Mean maximum-7°C
(20°F)		-6°C
(22°F)		-1°C
(30°F)		3°C
(37°F)		8°C
(47°F)		15°C
(59°F)		18°C
(64°F)		17°C
(64°F)		16°C
(61°F)		12°C
(55°F)		-1°C
(30°F)		-7°C
(20°F)
Average high-14°C
(6°F)		-11°C
(13°F)		-6°C
(21°F)		-2°C
(29°F)		4°C
(39°F)		11°C
(52°F)		14°C
(57°F)		14°C
(58°F)		12°C
(54°F)		5°C
(41°F)		-9°C
(16°F)		-14°C
(6°F)
Daily mean-20°C
(-4°F)		-16°C
(3°F)		-12°C
(11°F)		-7°C
(21°F)		-0°C
(32°F)		6°C
(44°F)		9°C
(49°F)		10°C
(49°F)		7°C
(45°F)		-0°C
(32°F)		-14°C
(6°F)		-20°C
(-3°F)
Average low-26°C
(-14°F)		-22°C
(-8°F)		-18°C
(0°F)		-12°C
(11°F)		-4°C
(25°F)		2°C
(36°F)		6°C
(42°F)		5°C
(42°F)		3°C
(38°F)		-5°C
(23°F)		-20°C
(-3°F)		-24°C
(-12°F)
Mean minimum-36°C
(-32°F)		-31°C
(-23°F)		-27°C
(-17°F)		-23°C
(-8°F)		-14°C
(8°F)		-7°C
(20°F)		2°C
(35°F)		1°C
(34°F)		-3°C
(26°F)		-21°C
(-5°F)		-31°C
(-23°F)		-34°C
(-29°F)
Minimum-40°C
(-40°F)		-34°C
(-29°F)		-30°C
(-21°F)		-26°C
(-15°F)		-17°C
(1°F)		-14°C
(8°F)		0°C
(33°F)		-1°C
(30°F)		-10°C
(14°F)		-28°C
(-19°F)		-33°C
(-26°F)		-39°C
(-37°F)

Compare climate in Reyu with other places

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

Monthly average precipitation in Reyu, China

Reyu usually has the most precipitation in July, August and September, with an average of 25 rainy days and 176 mm (6.9 inches) of precipitation per month. The driest months in Reyu are January, February and December. On average, 22 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Reyu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)15 (0.6)24 (0.9)36 (1.4)38 (1.5)97 (3.8)136 (5.4)219 (8.6)171 (6.7)138 (5.4)94 (3.7)37 (1.4)25 (1.0)
Average precipitation days (≥ 1 mm)47111017232723252097

Monthly sunshine hours in Reyu, China

The sunniest months in Reyu are March, April and May, when the sun shines an average of 11 hours 5 minutes a day. Least sunny months in Reyu: January, February and November receive an average of 9 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Reyu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours247292336337346333310320304305285298
Mean daily daylight hours10h 21m11h 4m11h 59m12h 56m13h 43m14h 7m13h 55m13h 13m12h 19m11h 22m10h 33m10h 8m

Solar UV radiation in Reyu, China

Reyu experiences the highest level of ultraviolet (UV) radiation in May, June and September, when the maximum UV index can reach values of 17 - 20, which corresponds to the Extreme category of sun exposure. January, February and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Reyu UV Index data.

Average daily maximum UV levels by month for Reyu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)8101516201716151712118