Weather in Cheonan in September
In an average September, Cheonan sees a daily high around 26°C and a low around 17°C, based on 1980–2026 of local climate records.
| Average high | 26°C |
|---|---|
| Typical high range | 22°C to 30°C |
| Average low | 17°C |
| Typical low range | 13°C to 21°C |
| Average daily precipitation | 5 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
34°C
2024-09-10
Lowest
15°C
1987-09-26
Low
Highest
26°C
2024-09-19
Lowest
5°C
1987-09-26
Feels-like
Highest
52°C
2024-09-17
Lowest
1°C
1987-09-26
Humidity
Highest
24.0 g/m³
2024-09-17
Lowest
5.4 g/m³
1987-09-26
Wind
Highest
49 km/h
2019-09-07
Lowest
5 km/h
2002-09-18
Gust
Highest
112 km/h
2019-09-07
Lowest
11 km/h
1996-09-05
Precip
Wettest
408 mm
1999
Driest
6 mm
1982
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