Weather in Seoul, South Korea in September
In an average September, Seoul sees a daily high around 24°C and a low around 17°C, based on 1981–2026 of local climate records.
| Average high | 24°C |
|---|---|
| Typical high range | 22°C to 27°C |
| Average low | 17°C |
| Typical low range | 13°C to 20°C |
| Average daily precipitation | 5 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
32°C
2024-09-17
Lowest
14°C
1987-09-26
Low
Highest
26°C
2024-09-19
Lowest
7°C
1987-09-27
Feels-like
Highest
45°C
2024-09-17
Lowest
2°C
1987-09-26
Humidity
Highest
23.3 g/m³
2024-09-19
Lowest
6.6 g/m³
1987-09-26
Wind
Highest
77 km/h
2019-09-07
Lowest
6 km/h
2019-09-02
Precip
Wettest
419 mm
2010
Driest
8 mm
1982
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