Weather on May 21 in Seoul
Historical weather data for May 21 in Seoul, South Korea
Avg High24°C (76°F)
Avg Low13°C (56°F)
Warmest200125°C
Coldest198515°C
Based on 56 years of data from SEOUL CITY
About This Date
May 21st in Seoul, South Korea typically brings pleasant spring weather, with average highs around 24°C and lows near 13°C. Over 56 years of records, the warmest May 21st was in 2001 (25°C average), while the coldest was 1985 (15°C) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 16% of May 21st dates historically, with the wettest May 21st recording 1.5" of rain.
Planning for May 21st in Seoul? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 20°C (68°F) | 15°C (59°F) | -- |
| 2025 | 28°C (82°F) | 18°C (65°F) | -- |
| 2024 | -- | 16°C (61°F) | -- |
| 2023 | -- | 16°C (60°F) | -- |
| 2022 | 26°C (79°F) | -- | -- |
| 2021 | -- | 13°C (56°F) | 12 mm |
| 2020 | -- | 11°C (52°F) | 0 mm |
| 2019 | -- | 12°C (53°F) | 0 mm |
| 2018 | -- | 11°C (52°F) | -- |
| 2017 | -- | 16°C (61°F) | -- |
| 2016 | 31°C (87°F) | -- | -- |
| 2015 | 26°C (79°F) | 13°C (55°F) | -- |
| 2014 | 27°C (80°F) | -- | -- |
| 2013 | 24°C (76°F) | 10°C (50°F) | -- |
| 2012 | 29°C (84°F) | 17°C (63°F) | -- |
| 2011 | 18°C (64°F) | -- | 3 mm |
| 2010 | 28°C (83°F) | 15°C (59°F) | -- |
| 2009 | 19°C (67°F) | -- | 38 mm |
| 2008 | 21°C (69°F) | 13°C (55°F) | 5 mm |
| 2007 | 24°C (75°F) | 13°C (55°F) | -- |
| 2006 | 28°C (83°F) | 16°C (60°F) | -- |
| 2005 | 23°C (73°F) | 13°C (56°F) | -- |
| 2004 | 22°C (71°F) | -- | 20 mm |
| 2003 | 26°C (79°F) | 13°C (56°F) | -- |
| 2002 | 26°C (78°F) | 13°C (56°F) | -- |
| 2001 | 32°C (89°F) | 18°C (65°F) | -- |
| 2000 | 23°C (73°F) | 11°C (52°F) | 1 mm |
| 1999 | 27°C (80°F) | 11°C (51°F) | 0 mm |
| 1998 | 32°C (89°F) | -- | -- |
| 1997 | 21°C (69°F) | 12°C (53°F) | 0 mm |
| 1996 | 22°C (71°F) | -- | -- |
| 1995 | 20°C (68°F) | -- | 9 mm |
| 1994 | 21°C (70°F) | -- | 0 mm |
| 1993 | 22°C (71°F) | -- | 5 mm |
| 1992 | 25°C (77°F) | -- | -- |
| 1991 | 29°C (85°F) | 16°C (61°F) | -- |
| 1990 | 18°C (65°F) | 12°C (53°F) | -- |
| 1989 | 21°C (70°F) | 13°C (56°F) | -- |
| 1988 | 28°C (83°F) | -- | -- |
| 1987 | 29°C (84°F) | 14°C (58°F) | -- |
| 1986 | 22°C (72°F) | 12°C (54°F) | -- |
| 1985 | 21°C (69°F) | 9°C (49°F) | -- |
| 1984 | 26°C (79°F) | -- | -- |
| 1983 | 26°C (78°F) | -- | -- |
| 1982 | 23°C (73°F) | 11°C (51°F) | -- |
| 1981 | 23°C (73°F) | 10°C (50°F) | -- |
| 1980 | 26°C (79°F) | 12°C (54°F) | -- |
| 1979 | 27°C (81°F) | 12°C (54°F) | -- |
| 1978 | 26°C (79°F) | 14°C (57°F) | 0 mm |
| 1977 | 22°C (72°F) | -- | -- |
| 1976 | 23°C (73°F) | -- | 0 mm |
| 1975 | 23°C (73°F) | 12°C (54°F) | 0 mm |
| 1974 | 27°C (81°F) | -- | 0 mm |
| 1973 | 23°C (73°F) | -- | 0 mm |
| 1972 | 19°C (67°F) | 12°C (54°F) | 0 mm |
| 1971 | 19°C (67°F) | 14°C (58°F) | 0 mm |