Seoul, South Korea weather records
Record high and low temperatures for Seoul, South Korea, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 35°C on 2018-08-01; its coldest fell to -21°C on 2001-01-15.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 13°C2002-01-15
-13°C1986-01-05
|
6°C2002-01-15
-21°C2001-01-15
|
| February | 15°C1992-02-28
-9°C2006-02-03
|
7°C1992-02-29
-19°C2013-02-08
|
| March | 21°C2023-03-22
-3°C2001-03-08
|
8°C2009-03-18
-9°C2004-03-07
|
| April | 26°C1989-04-20
6°C1993-04-08
|
15°C1998-04-23
-4°C1984-04-06
|
| May | 29°C2019-05-24
12°C2021-05-01
|
18°C2026-05-26
4°C2003-05-01
|
| June | 32°C2020-06-22
18°C1998-06-05
|
24°C2022-06-28
7°C1981-06-01
|
| July | 34°C1994-07-23
21°C1990-07-02
|
26°C2024-07-28
13°C1986-07-04
|
| August | 35°C2018-08-01
21°C2016-08-31
|
27°C2024-08-21
14°C1991-08-28
|
| September | 32°C2024-09-17
14°C1987-09-26
|
26°C2024-09-19
7°C1987-09-27
|
| October | 27°C2019-10-01
6°C1981-10-23
|
20°C2022-10-03
-2°C1982-10-25
|
| November | 22°C2023-11-02
-3°C2022-11-30
|
14°C1989-11-05
-8°C1987-11-30
|
| December | 15°C2023-12-08
-9°C2022-12-23
|
7°C1990-12-08
-17°C2012-12-26
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 15°C1992-02-28
-13°C1986-01-05
|
7°C1990-12-08
-21°C2001-01-15
|
| Spring (Mar–May) | 29°C2019-05-24
-3°C2001-03-08
|
18°C2026-05-26
-9°C2004-03-07
|
| Summer (Jun–Aug) | 35°C2018-08-01
18°C1998-06-05
|
27°C2024-08-21
7°C1981-06-01
|
| Autumn (Sep–Nov) | 32°C2024-09-17
-3°C2022-11-30
|
26°C2024-09-19
-8°C1987-11-30
|
All-time records
The most extreme value Seoul has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.