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Monthly climate in Suwon, South Korea

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Suwon features a humid continental climate (Dwa).Temperatures typically range between -2 °C (29 °F) and 27 °C (80 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1093 mm (43.0 inches) and receives 83 rainy days on the 1 mm (0.04 inches) threshold annually.Suwon enjoys an average of 3222 hours of sunshine throughout the year, and daylight varies from 9 hours 37 minutes to 14 hours 40 minutes per day.

Monthly average temperatures in Suwon, South Korea §

The warmest months in Suwon are June, July and August, with daily mean temperatures ranging from 22 to 27 °C (72 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (29 - 33 °F) throughout the day. On average each year, Suwon experiences 94 days above 25 °C (77.0 °F) and 90 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Suwon, South Korea.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 13°C
(55°F)		 18°C
(65°F)		 21°C
(70°F)		 28°C
(82°F)		 31°C
(89°F)		 33°C
(91°F)		 36°C
(98°F)		 38°C
(101°F)		 31°C
(88°F)		 29°C
(84°F)		 21°C
(70°F)		 13°C
(56°F)
Mean maximum 10°C
(50°F)		 13°C
(56°F)		 19°C
(66°F)		 26°C
(78°F)		 29°C
(85°F)		 30°C
(87°F)		 34°C
(94°F)		 35°C
(95°F)		 30°C
(85°F)		 27°C
(80°F)		 20°C
(68°F)		 11°C
(53°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 12°C
(54°F)		 18°C
(64°F)		 23°C
(73°F)		 27°C
(80°F)		 29°C
(85°F)		 30°C
(86°F)		 26°C
(79°F)		 20°C
(68°F)		 13°C
(55°F)		 5°C
(41°F)
Daily mean -2°C
(29°F)		 0°C
(33°F)		 7°C
(44°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(72°F)		 26°C
(79°F)		 27°C
(80°F)		 22°C
(71°F)		 15°C
(59°F)		 8°C
(46°F)		 0°C
(33°F)
Average low -6°C
(22°F)		 -4°C
(25°F)		 2°C
(36°F)		 7°C
(45°F)		 12°C
(55°F)		 18°C
(64°F)		 23°C
(73°F)		 24°C
(75°F)		 18°C
(64°F)		 10°C
(51°F)		 3°C
(37°F)		 -4°C
(25°F)
Mean minimum -13°C
(9°F)		 -11°C
(13°F)		 -4°C
(25°F)		 0°C
(32°F)		 7°C
(46°F)		 13°C
(56°F)		 19°C
(66°F)		 19°C
(67°F)		 11°C
(52°F)		 2°C
(37°F)		 -4°C
(25°F)		 -12°C
(11°F)
Minimum -17°C
(2°F)		 -15°C
(4°F)		 -6°C
(21°F)		 -1°C
(30°F)		 6°C
(42°F)		 12°C
(53°F)		 18°C
(65°F)		 16°C
(61°F)		 9°C
(48°F)		 1°C
(33°F)		 -5°C
(23°F)		 -14°C
(8°F)

Compare climate in Suwon with other places

Compare temperature, precipitation, sunshine, UV index in Suwon, South Korea with other places around the world.

Monthly average precipitation in Suwon, South Korea §

Suwon usually has the most precipitation in July, August and September, with an average of 12 rainy days and 209 mm (8.2 inches) of precipitation per month.The driest months in Suwon are January, February and December. On average, 23 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Suwon, South Korea.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 21 (0.8) 23 (0.9) 47 (1.9) 54 (2.1) 98 (3.9) 80 (3.1) 235 (9.3) 255 (10.1) 136 (5.4) 62 (2.5) 54 (2.1) 26 (1.0)
Average precipitation days (≥ 1 mm) 2 4 5 5 8 7 14 14 9 5 5 5

Monthly sunshine hours in Suwon, South Korea §

The sunniest months in Suwon are May, June and July, when the sun shines an average of 10 hours 4 minutes a day.Least sunny months in Suwon: January, November and December receive an average of 7 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Suwon, South Korea.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 198 241 282 288 315 318 293 290 261 265 231 235
Mean daily daylight hours 9h 53m 10h 48m 11h 57m 13h 9m 14h 9m 14h 40m 14h 24m 13h 32m 12h 23m 11h 12m 10h 9m 9h 37m

Solar UV radiation in Suwon, South Korea §

Suwon experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Suwon UV Index data.

Average daily maximum UV levels by month for Suwon, South Korea.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 4 6 8 9 10 11 11 9 6 4 3