Weather in Kumamoto in September
In an average September, Kumamoto sees a daily high around 27°C and a low around 19°C, based on 1980–2026 of local climate records.
| Average high | 27°C |
|---|---|
| Typical high range | 23°C to 30°C |
| Average low | 19°C |
| Typical low range | 15°C to 23°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
35°C
2026-09-02
Lowest
16°C
1980-09-25
Low
Highest
26°C
2024-09-14
Lowest
5°C
1987-09-27
Feels-like
Highest
46°C
2024-09-11
Lowest
2°C
1987-09-27
Humidity
Highest
22.4 g/m³
2024-09-15
Lowest
7.0 g/m³
1987-09-27
Wind
Highest
54 km/h
1991-09-27
Lowest
4 km/h
1990-09-07
Gust
Highest
178 km/h
1991-09-27
Lowest
11 km/h
1984-09-13
Precip
Wettest
420 mm
1993
Driest
31 mm
1994
See Kumamoto's live weather grade →
Visiting Kumamoto in September? See how its comfort stacks up against where you live.
Compare Kumamoto with your city →