Seoul Weather in April
In April, Seoul averages a high of 18°C (64°F) and a low of 7°C (45°F), from 48 years of daily records (1971–2026).
18°C
Average high
64°F
7°C
Average low
45°F
30°C
Record high
86°F · April 30, 2005
-8°C
Record low
18°F · April 20, 2006
What April Is Like in Seoul
- The warmest April in the record was 2022; the coldest was 2010.
At least 1 mm of rain falls on 28% of April days, and the month averages 73 mm in total.
Warmest: 2022 (22.2°C)Latest: 2026 (18.1°C)10-year averageLong-run average (17.6°C)
Look Up a Day in April
See the weather in Seoul on any April date, year by year.
Source: NOAA GHCN-Daily, Seoul City (1973–2025); Incheon (1971–2026). Averages cover 1971–2026. How we compute this