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Monthly climate in Chi'an, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chi'an features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (43 °F) and 28 °C (83 °F) through the year, but rarely can drop to -6 °C (21 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1886 mm (74.3 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually. Chi'an enjoys an average of 2827 hours of sunshine throughout the year, and daylight varies from 10 hours 19 minutes to 13 hours 56 minutes per day.

Monthly average temperatures in Chi'an, China

The warmest months in Chi'an are June, July and August, with daily mean temperatures ranging from 25 to 28 °C (78 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (43 - 46 °F) throughout the day. On average each year, Chi'an experiences 128 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chi'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(69°F)		24°C
(76°F)		28°C
(82°F)		31°C
(88°F)		33°C
(92°F)		34°C
(94°F)		37°C
(99°F)		36°C
(97°F)		35°C
(95°F)		34°C
(94°F)		27°C
(80°F)		22°C
(72°F)
Mean maximum17°C
(63°F)		20°C
(69°F)		25°C
(78°F)		29°C
(84°F)		31°C
(89°F)		32°C
(89°F)		35°C
(96°F)		35°C
(96°F)		34°C
(94°F)		31°C
(88°F)		24°C
(76°F)		19°C
(66°F)
Average high9°C
(49°F)		11°C
(52°F)		16°C
(62°F)		21°C
(71°F)		26°C
(79°F)		28°C
(83°F)		31°C
(89°F)		32°C
(90°F)		29°C
(84°F)		22°C
(73°F)		18°C
(64°F)		11°C
(53°F)
Daily mean6°C
(43°F)		8°C
(46°F)		13°C
(56°F)		17°C
(64°F)		22°C
(72°F)		25°C
(78°F)		28°C
(83°F)		28°C
(83°F)		25°C
(77°F)		19°C
(66°F)		13°C
(57°F)		8°C
(46°F)
Average low3°C
(38°F)		5°C
(41°F)		10°C
(50°F)		14°C
(57°F)		19°C
(66°F)		22°C
(73°F)		25°C
(77°F)		25°C
(78°F)		22°C
(71°F)		15°C
(60°F)		10°C
(50°F)		4°C
(40°F)
Mean minimum-3°C
(27°F)		-1°C
(31°F)		5°C
(41°F)		7°C
(45°F)		15°C
(58°F)		19°C
(66°F)		22°C
(73°F)		22°C
(73°F)		18°C
(64°F)		10°C
(50°F)		4°C
(39°F)		-2°C
(29°F)
Minimum-6°C
(21°F)		-4°C
(25°F)		2°C
(36°F)		5°C
(42°F)		10°C
(51°F)		17°C
(63°F)		20°C
(69°F)		21°C
(71°F)		15°C
(60°F)		7°C
(45°F)		1°C
(35°F)		-3°C
(26°F)

Compare climate in Chi'an with other places

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

Monthly average precipitation in Chi'an, China

Chi'an usually has the most precipitation in May, June and July, with an average of 18 rainy days and 306 mm (12.1 inches) of precipitation per month. The driest months in Chi'an are October, November and December. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chi'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)73 (2.9)88 (3.5)203 (8.0)191 (7.5)242 (9.5)372 (14.6)305 (12.0)154 (6.1)105 (4.1)40 (1.6)59 (2.3)53 (2.1)
Average precipitation days (≥ 1 mm)91318161821171711788

Monthly sunshine hours in Chi'an, China

The sunniest months in Chi'an are July, August and September, when the sun shines an average of 9 hours 25 minutes a day. Least sunny months in Chi'an: January, February and March receive an average of 6 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chi'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours158195201226265252288308269231214215
Mean daily daylight hours10h 30m11h 9m11h 59m12h 51m13h 34m13h 56m13h 45m13h 7m12h 18m11h 26m10h 42m10h 19m

Solar UV radiation in Chi'an, China

Chi'an experiences the highest level of ultraviolet (UV) radiation in June, 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 Chi'an UV Index data.

Average daily maximum UV levels by month for Chi'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)679101112121211975