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Monthly climate in Xi'an, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Xi'an features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (39 °F) and 27 °C (81 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1807 mm (71.1 inches) and receives 172 rainy days on the 1 mm (0.04 inches) threshold annually. Xi'an enjoys an average of 2621 hours of sunshine throughout the year, and daylight varies from 10 hours 20 minutes to 13 hours 54 minutes per day.

Monthly average temperatures in Xi'an, China

The warmest months in Xi'an are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (75 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 43 °F) throughout the day. On average each year, Xi'an experiences 109 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Xi'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(65°F)		26°C
(78°F)		29°C
(84°F)		31°C
(88°F)		33°C
(92°F)		34°C
(93°F)		37°C
(99°F)		36°C
(98°F)		35°C
(95°F)		34°C
(93°F)		28°C
(83°F)		19°C
(66°F)
Mean maximum15°C
(59°F)		20°C
(69°F)		27°C
(80°F)		29°C
(85°F)		32°C
(89°F)		32°C
(90°F)		35°C
(95°F)		36°C
(96°F)		33°C
(91°F)		30°C
(86°F)		24°C
(76°F)		17°C
(62°F)
Average high6°C
(44°F)		9°C
(49°F)		15°C
(60°F)		20°C
(69°F)		24°C
(76°F)		28°C
(82°F)		31°C
(88°F)		31°C
(88°F)		26°C
(80°F)		20°C
(68°F)		16°C
(60°F)		9°C
(49°F)
Daily mean4°C
(39°F)		6°C
(43°F)		12°C
(53°F)		16°C
(61°F)		20°C
(69°F)		24°C
(75°F)		27°C
(81°F)		27°C
(81°F)		23°C
(73°F)		16°C
(62°F)		12°C
(54°F)		6°C
(43°F)
Average low2°C
(35°F)		3°C
(38°F)		8°C
(47°F)		12°C
(54°F)		17°C
(63°F)		21°C
(70°F)		24°C
(75°F)		24°C
(75°F)		20°C
(68°F)		14°C
(57°F)		9°C
(48°F)		4°C
(39°F)
Mean minimum-3°C
(26°F)		-1°C
(30°F)		3°C
(38°F)		7°C
(44°F)		13°C
(55°F)		17°C
(63°F)		21°C
(69°F)		20°C
(68°F)		16°C
(62°F)		9°C
(48°F)		2°C
(37°F)		-3°C
(27°F)
Minimum-7°C
(19°F)		-3°C
(26°F)		3°C
(37°F)		5°C
(40°F)		11°C
(51°F)		15°C
(60°F)		18°C
(65°F)		18°C
(65°F)		14°C
(58°F)		7°C
(46°F)		2°C
(36°F)		-6°C
(22°F)

Compare climate in Xi'an with other places

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

Monthly average precipitation in Xi'an, China

Xi'an usually has the most precipitation in May, June and July, with an average of 17 rainy days and 252 mm (9.9 inches) of precipitation per month. The driest months in Xi'an are January, November and December. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Xi'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)64 (2.5)91 (3.6)194 (7.6)159 (6.3)241 (9.5)255 (10.0)260 (10.2)202 (8.0)141 (5.6)89 (3.5)64 (2.5)47 (1.9)
Average precipitation days (≥ 1 mm)9121817171818181411128

Monthly sunshine hours in Xi'an, China

The sunniest months in Xi'an are May, July and August, when the sun shines an average of 9 hours 17 minutes a day. Least sunny months in Xi'an: January, February and March receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Xi'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours135179184203257256296309232191187187
Mean daily daylight hours10h 32m11h 10m11h 59m12h 50m13h 33m13h 54m13h 44m13h 6m12h 18m11h 27m10h 43m10h 20m

Solar UV radiation in Xi'an, China

Xi'an experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 13, 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 Xi'an UV Index data.

Average daily maximum UV levels by month for Xi'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)679111112131210975