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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 7 °C (45 °F) and 30 °C (87 °F) through the year, but rarely can drop to -4 °C (24 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 1465 mm (57.7 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Chi'an enjoys an average of 2684 hours of sunshine throughout the year, and daylight varies from 10 hours 17 minutes to 13 hours 58 minutes per day.

Monthly average temperatures in Chi'an, China

The warmest months in Chi'an are July, August and September, with daily mean temperatures ranging from 27 to 30 °C (80 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (45 - 48 °F) throughout the day. On average each year, Chi'an experiences 149 days above 25 °C (77.0 °F) and 10 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
Maximum24°C
(76°F)		27°C
(81°F)		31°C
(88°F)		34°C
(93°F)		41°C
(106°F)		37°C
(99°F)		42°C
(107°F)		40°C
(105°F)		39°C
(102°F)		36°C
(98°F)		32°C
(89°F)		24°C
(76°F)
Mean maximum21°C
(70°F)		23°C
(74°F)		28°C
(82°F)		31°C
(89°F)		35°C
(96°F)		34°C
(93°F)		39°C
(102°F)		39°C
(103°F)		38°C
(100°F)		33°C
(92°F)		27°C
(82°F)		21°C
(69°F)
Average high11°C
(52°F)		12°C
(55°F)		18°C
(65°F)		23°C
(74°F)		28°C
(82°F)		29°C
(85°F)		34°C
(93°F)		35°C
(96°F)		31°C
(88°F)		25°C
(77°F)		20°C
(68°F)		13°C
(56°F)
Daily mean7°C
(45°F)		8°C
(47°F)		14°C
(57°F)		18°C
(65°F)		23°C
(74°F)		25°C
(78°F)		29°C
(85°F)		30°C
(87°F)		27°C
(80°F)		20°C
(69°F)		15°C
(59°F)		9°C
(48°F)
Average low4°C
(39°F)		5°C
(41°F)		10°C
(50°F)		13°C
(56°F)		19°C
(66°F)		22°C
(72°F)		26°C
(78°F)		26°C
(79°F)		23°C
(73°F)		17°C
(62°F)		11°C
(52°F)		5°C
(42°F)
Mean minimum-3°C
(27°F)		-0°C
(31°F)		4°C
(39°F)		6°C
(43°F)		13°C
(55°F)		18°C
(64°F)		23°C
(74°F)		23°C
(74°F)		18°C
(65°F)		10°C
(50°F)		5°C
(41°F)		-1°C
(30°F)
Minimum-4°C
(24°F)		-3°C
(27°F)		1°C
(35°F)		4°C
(40°F)		10°C
(50°F)		16°C
(60°F)		21°C
(70°F)		21°C
(70°F)		17°C
(63°F)		8°C
(47°F)		4°C
(39°F)		-2°C
(28°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 16 rainy days and 230 mm (9.0 inches) of precipitation per month. The driest months in Chi'an are October, November and December. On average, 62 mm (2.4 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)69 (2.7)71 (2.8)128 (5.1)97 (3.8)181 (7.1)282 (11.1)226 (8.9)133 (5.2)90 (3.5)54 (2.1)66 (2.6)67 (2.6)
Average precipitation days (≥ 1 mm)81115121319161111699

Monthly sunshine hours in Chi'an, China

The sunniest months in Chi'an are May, July and August, when the sun shines an average of 9 hours 6 minutes a day. Least sunny months in Chi'an: January, February and November receive an average of 5 hours 52 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 hours142191197242264220273308236209193202
Mean daily daylight hours10h 29m11h 8m11h 59m12h 52m13h 36m13h 58m13h 47m13h 8m12h 18m11h 26m10h 40m10h 17m

Solar UV radiation in Chi'an, China

Chi'an 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, 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 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)6710101212121211865