Seoul Weather in October
In October, Seoul averages a high of 20°C (68°F) and a low of 10°C (50°F), from 47 years of daily records (1971–2026).
20°C
Average high
68°F
10°C
Average low
50°F
29°C
Record high
84°F · October 1, 1977
-2°C
Record low
28°F · October 31, 1997
What October Is Like in Seoul
- The October heat record, 29°C (84°F) on October 1, 1977, has stood for 49 years.
- October 2025 was the 5th warmest October in 47 years of records, 1.4°C (2.6°F) above the long-run average.
- The warmest October in the record was 2006; the coldest was 1986.
At least 1 mm of rain falls on 21% of October days, and the month averages 55 mm in total.
Warmest: 2006 (23.0°C)Latest: 2025 (19.7°C)10-year averageLong-run average (19.9°C)
Look Up a Day in October
See the weather in Seoul on any October date, year by year.
Source: NOAA GHCN-Daily, Seoul City (1973–2025); Incheon (1971–2026). Averages cover 1971–2026. How we compute this