Weather on October 21 in Seoul
Historical weather data for October 21 in Seoul, South Korea
Avg High19°C (66°F)
Avg Low8°C (47°F)
Warmest200619°C
Coldest19846°C
Based on 54 years of data from SEOUL CITY
About This Date
October 21st in Seoul, South Korea typically brings mild fall weather, with average highs around 19°C and lows near 8°C. Over 54 years of records, the warmest October 21st was in 2006 (19°C average), while the coldest was 1984 (6°C) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 13% of October 21st dates historically, with the wettest October 21st recording 4.5" of rain.
Planning for October 21st in Seoul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 13°C (56°F) | 6°C (43°F) | -- |
| 2024 | -- | 9°C (49°F) | -- |
| 2023 | -- | 1°C (33°F) | -- |
| 2021 | -- | 5°C (41°F) | -- |
| 2020 | -- | 12°C (53°F) | -- |
| 2019 | -- | 11°C (52°F) | -- |
| 2018 | -- | 7°C (45°F) | -- |
| 2017 | -- | 11°C (52°F) | -- |
| 2016 | 22°C (72°F) | -- | -- |
| 2015 | 23°C (73°F) | 14°C (57°F) | -- |
| 2014 | 16°C (60°F) | -- | 1.91" |
| 2013 | 22°C (72°F) | -- | -- |
| 2012 | 24°C (75°F) | -- | -- |
| 2011 | 21°C (70°F) | 13°C (56°F) | -- |
| 2010 | 22°C (71°F) | 10°C (50°F) | -- |
| 2009 | 18°C (65°F) | -- | -- |
| 2008 | 23°C (73°F) | 14°C (58°F) | -- |
| 2007 | 18°C (64°F) | 3°C (38°F) | -- |
| 2006 | 24°C (75°F) | 15°C (59°F) | 0" |
| 2005 | 15°C (59°F) | -- | 1.35" |
| 2004 | 21°C (69°F) | -- | -- |
| 2003 | -- | 9°C (48°F) | 0.15" |
| 2002 | 14°C (58°F) | -- | 0.05" |
| 2001 | 24°C (75°F) | 11°C (51°F) | -- |
| 2000 | 21°C (69°F) | 9°C (48°F) | -- |
| 1999 | 19°C (67°F) | -- | -- |
| 1998 | 21°C (70°F) | 7°C (45°F) | -- |
| 1997 | 23°C (74°F) | -- | -- |
| 1996 | 21°C (69°F) | 10°C (50°F) | -- |
| 1995 | 20°C (68°F) | -- | -- |
| 1994 | 11°C (51°F) | -- | 2.21" |
| 1993 | 18°C (65°F) | -- | 0" |
| 1992 | 20°C (68°F) | 9°C (49°F) | -- |
| 1991 | -- | 4°C (39°F) | -- |
| 1990 | 23°C (74°F) | 9°C (49°F) | -- |
| 1989 | 19°C (66°F) | 6°C (43°F) | -- |
| 1988 | 21°C (69°F) | -- | -- |
| 1987 | 11°C (52°F) | -- | -- |
| 1986 | 12°C (54°F) | -- | 4.5" |
| 1985 | 17°C (63°F) | 4°C (40°F) | -- |
| 1984 | 11°C (51°F) | 1°C (34°F) | -- |
| 1983 | 19°C (67°F) | 9°C (48°F) | -- |
| 1982 | 21°C (69°F) | -- | -- |
| 1981 | 21°C (70°F) | 10°C (50°F) | -- |
| 1980 | 13°C (55°F) | -- | -- |
| 1979 | 12°C (54°F) | -- | -- |
| 1978 | 18°C (64°F) | -- | 0" |
| 1977 | 23°C (73°F) | -- | 0" |
| 1976 | 17°C (63°F) | 9°C (48°F) | 0" |
| 1975 | 23°C (73°F) | 10°C (50°F) | 0" |
| 1974 | 18°C (64°F) | 4°C (39°F) | 0" |
| 1973 | 22°C (72°F) | -- | -- |
| 1972 | 19°C (67°F) | 4°C (40°F) | 0.4" |
| 1971 | 19°C (67°F) | 12°C (54°F) | 0" |