Weather on April 21 in Seoul
Historical weather data for April 21 in Seoul, South Korea
Avg High19°C (67°F)
Avg Low9°C (48°F)
Warmest199421°C
Coldest19809°C
Based on 54 years of data from SEOUL CITY
About This Date
April 21st in Seoul, South Korea typically brings mild spring weather, with average highs around 19°C and lows near 9°C. Over 54 years of records, the warmest April 21st was in 1994 (21°C average), while the coldest was 1980 (9°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 11% of April 21st dates historically, with the wettest April 21st recording 4.55" of rain.
Planning for April 21st in Seoul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 14°C (57°F) | 10°C (50°F) | -- |
| 2025 | -- | 14°C (58°F) | -- |
| 2024 | -- | 13°C (56°F) | -- |
| 2023 | -- | 12°C (53°F) | -- |
| 2022 | 23°C (73°F) | 9°C (49°F) | -- |
| 2021 | -- | 11°C (51°F) | -- |
| 2018 | -- | 12°C (54°F) | -- |
| 2017 | -- | 8°C (46°F) | 0 mm |
| 2016 | 17°C (62°F) | 11°C (51°F) | 43 mm |
| 2015 | 21°C (70°F) | 8°C (46°F) | -- |
| 2014 | 22°C (71°F) | -- | -- |
| 2013 | 16°C (60°F) | 4°C (40°F) | -- |
| 2012 | 16°C (61°F) | -- | 116 mm |
| 2011 | 18°C (64°F) | 8°C (46°F) | -- |
| 2010 | 18°C (65°F) | -- | -- |
| 2009 | 12°C (53°F) | -- | -- |
| 2008 | 23°C (74°F) | 17°C (63°F) | -- |
| 2007 | 20°C (68°F) | -- | 0 mm |
| 2006 | 17°C (62°F) | 6°C (42°F) | 0 mm |
| 2005 | 13°C (56°F) | 7°C (45°F) | 0 mm |
| 2004 | 25°C (77°F) | 10°C (50°F) | 0 mm |
| 2003 | 19°C (67°F) | 7°C (44°F) | 9 mm |
| 2002 | 24°C (75°F) | 9°C (49°F) | -- |
| 2001 | 21°C (70°F) | 9°C (49°F) | -- |
| 2000 | 15°C (59°F) | -- | -- |
| 1999 | 24°C (76°F) | -- | 0 mm |
| 1998 | 26°C (78°F) | -- | -- |
| 1997 | 22°C (71°F) | -- | -- |
| 1996 | 16°C (60°F) | 6°C (43°F) | -- |
| 1995 | 16°C (61°F) | 7°C (45°F) | 41 mm |
| 1994 | 29°C (84°F) | 14°C (57°F) | -- |
| 1993 | 23°C (74°F) | -- | -- |
| 1992 | 18°C (64°F) | -- | 28 mm |
| 1991 | 19°C (66°F) | 6°C (43°F) | -- |
| 1990 | 21°C (69°F) | 9°C (48°F) | -- |
| 1989 | 29°C (85°F) | -- | -- |
| 1988 | 14°C (58°F) | -- | -- |
| 1987 | 21°C (69°F) | -- | 84 mm |
| 1986 | 17°C (63°F) | 5°C (41°F) | -- |
| 1985 | 22°C (72°F) | 8°C (47°F) | -- |
| 1984 | 18°C (64°F) | -- | -- |
| 1983 | 18°C (64°F) | 9°C (48°F) | -- |
| 1982 | 22°C (71°F) | -- | -- |
| 1981 | 19°C (66°F) | 6°C (43°F) | -- |
| 1980 | 14°C (57°F) | 4°C (39°F) | -- |
| 1979 | 20°C (68°F) | 8°C (46°F) | -- |
| 1978 | 18°C (64°F) | -- | 0 mm |
| 1977 | 25°C (77°F) | 9°C (48°F) | 0 mm |
| 1976 | 25°C (77°F) | 8°C (46°F) | 0 mm |
| 1975 | 19°C (66°F) | 10°C (50°F) | 0 mm |
| 1974 | 15°C (59°F) | -- | -- |
| 1973 | 21°C (70°F) | -- | 0 mm |
| 1972 | 20°C (68°F) | 9°C (49°F) | 0 mm |
| 1971 | 16°C (61°F) | 9°C (48°F) | 0 mm |