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Monthly climate in Sui'an, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sui'an features a humid subtropical climate (Cfa). Temperatures typically range between 15 °C (59 °F) and 29 °C (84 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 1267 mm (49.9 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Sui'an enjoys an average of 3301 hours of sunshine throughout the year, and daylight varies from 10 hours 40 minutes to 13 hours 34 minutes per day.

Monthly average temperatures in Sui'an, China

The warmest months in Sui'an are July, August and September, with daily mean temperatures ranging from 28 to 29 °C (82 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 16 °C (59 - 62 °F) throughout the day. On average each year, Sui'an experiences 182 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sui'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(80°F)		27°C
(82°F)		30°C
(86°F)		32°C
(89°F)		34°C
(94°F)		34°C
(93°F)		35°C
(96°F)		36°C
(97°F)		34°C
(94°F)		34°C
(94°F)		30°C
(86°F)		28°C
(83°F)
Mean maximum24°C
(75°F)		25°C
(77°F)		28°C
(82°F)		31°C
(87°F)		33°C
(91°F)		33°C
(91°F)		34°C
(94°F)		34°C
(94°F)		34°C
(93°F)		32°C
(90°F)		28°C
(83°F)		26°C
(79°F)
Average high18°C
(65°F)		18°C
(65°F)		21°C
(71°F)		25°C
(77°F)		28°C
(82°F)		30°C
(86°F)		32°C
(89°F)		31°C
(89°F)		31°C
(88°F)		28°C
(82°F)		24°C
(76°F)		20°C
(68°F)
Daily mean15°C
(59°F)		15°C
(59°F)		18°C
(64°F)		21°C
(70°F)		25°C
(77°F)		27°C
(81°F)		29°C
(84°F)		28°C
(83°F)		28°C
(82°F)		24°C
(76°F)		20°C
(69°F)		16°C
(62°F)
Average low12°C
(54°F)		12°C
(54°F)		15°C
(59°F)		18°C
(65°F)		22°C
(72°F)		25°C
(78°F)		26°C
(80°F)		26°C
(79°F)		25°C
(78°F)		22°C
(71°F)		18°C
(64°F)		14°C
(57°F)
Mean minimum7°C
(44°F)		7°C
(45°F)		10°C
(50°F)		13°C
(55°F)		17°C
(63°F)		23°C
(74°F)		25°C
(78°F)		24°C
(76°F)		22°C
(72°F)		17°C
(62°F)		14°C
(58°F)		9°C
(49°F)
Minimum3°C
(37°F)		4°C
(40°F)		7°C
(45°F)		11°C
(52°F)		15°C
(59°F)		21°C
(70°F)		25°C
(76°F)		24°C
(76°F)		20°C
(69°F)		15°C
(59°F)		12°C
(54°F)		8°C
(46°F)

Compare climate in Sui'an with other places

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

Monthly average precipitation in Sui'an, China

Sui'an usually has the most precipitation in May, June and August, with an average of 20 rainy days and 222 mm (8.7 inches) of precipitation per month. The driest months in Sui'an are January, February and December. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sui'an. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)26 (1.0)40 (1.6)75 (3.0)90 (3.5)166 (6.5)241 (9.5)139 (5.5)260 (10.2)111 (4.4)43 (1.7)43 (1.7)33 (1.3)
Average precipitation days (≥ 1 mm)4611101622202314644

Monthly sunshine hours in Sui'an, China

The sunniest months in Sui'an are May, July and August, when the sun shines an average of 10 hours 1 minutes a day. Least sunny months in Sui'an: January, February and November receive an average of 8 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sui'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours213250271276296263329306294282256260
Mean daily daylight hours10h 49m11h 20m12h 0m12h 42m13h 17m13h 34m13h 25m12h 55m12h 15m11h 34m10h 58m10h 40m

Solar UV radiation in Sui'an, China

Sui'an experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Sui'an UV Index data.

Average daily maximum UV levels by month for Sui'an. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)710111313131313121097