Seoul, South Korea Weather
Seoul hourly forecast: next 24 hours
Today's high of 101°F (38°C) is about 16°F (9°C) above the typical August high of 85°F (29°C).
Current conditions in detail
Seoul weather tomorrow (Saturday, August 8)
Tomorrow in Seoul looks sunny, with a high of 98° and an overnight low of 78°. Precipitation chance is modest at 17%. Winds top out near 13 mph, and the UV index reaches 10 (very high).
Seoul 14-day forecast
About the weather in Seoul
Located in South Korea, Seoul experiences a humid subtropical climate with hot, humid summers and generally mild winters. Afternoon temperatures peak near 85°F (29°C) in August and dip to about 36°F (2°C) in January, with around 48.7 inches (1236 mm) of precipitation falling across the year.
Seoul weather: quick facts
- Hottest month: August - highs near 85°F (29°C)
- Coldest month: January - highs near 36°F (2°C)
- Record high: 97°F (36°C) · Record low: -3°F (-20°C) (2015–2024)
- Wettest month: July (18 rainy days) · Sunniest: May (10.0 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
- Snow: about 5 days a year
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 85°F (29°C) and overnight lows stay near 72°F (22°C). The coolest month is January, with typical highs of 36°F (2°C) and lows around 20°F (-7°C). Based on 2015–2024 weather data, temperatures have reached as high as 97°F (36°C) and dropped as low as -3°F (-20°C).
Rain, sun and snow
July is usually the wettest month. It brings about 12.2 inches (310 mm) of rain over 18 days, while January is the driest. May brings the most sunshine, averaging 10.0 hours of sun a day. Snow falls on about 5 days in a typical year, mostly from December through March.
Season by season
Spring (March through May)
Spring in Seoul is crisp but comfortable, with daytime highs averaging 63°F (17°C) and nights around 43°F (6°C); expect showers on roughly 21 days across the season.
Summer (June through August)
Summer in Seoul runs hot, with daytime highs averaging 83°F (28°C) and nights around 69°F (21°C); expect showers on roughly 43 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
Fall (September through November)
Fall in Seoul is crisp but comfortable, with daytime highs averaging 65°F (18°C) and nights around 49°F (9°C); expect showers on roughly 22 days across the season.
Winter (December through February)
Winter in Seoul brings deep cold, with daytime highs averaging 38°F (3°C) and nights around 22°F (-6°C); rain falls on about 12 days over the three months, plus around 4 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Average temperatures in Seoul by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 36° | 20° | 3 | 0.7 in | 7.8 h/day | 58% |
| February | 41° | 23° | 4 | 1.0 in | 8.4 h/day | 61% |
| March | 53° | 32° | 6 | 1.6 in | 9.1 h/day | 66% |
| April | 64° | 44° | 7 | 2.5 in | 9.3 h/day | 65% |
| May | 73° | 53° | 8 | 4.2 in | 10.0 h/day | 68% |
| June | 81° | 64° | 10 | 4.7 in | 9.8 h/day | 72% |
| July | 84° | 72° | 18 | 12.2 in | 8.2 h/day | 82% |
| August | 85° | 72° | 16 | 10.2 in | 9.2 h/day | 82% |
| September | 78° | 63° | 9 | 5.2 in | 8.6 h/day | 77% |
| October | 65° | 49° | 6 | 3.0 in | 8.3 h/day | 74% |
| November | 52° | 35° | 7 | 2.3 in | 7.2 h/day | 71% |
| December | 38° | 23° | 4 | 1.0 in | 7.2 h/day | 63% |