Kumamoto weather records
Record high and low temperatures for Kumamoto, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 38°C on 2026-08-03; its coldest fell to -17°C on 1980-12-31.
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 | 18°C1989-01-19
-3°C2016-01-24
|
12°C1989-01-19
-17°C1981-01-22
|
| February | 20°C2024-02-20
-4°C1981-02-26
|
16°C2024-02-20
-14°C1984-02-09
|
| March | 24°C2025-03-26
1°C2015-03-10
|
16°C2024-03-24
-9°C1987-03-01
|
| April | 27°C2025-04-21
6°C2007-04-18
|
21°C1983-04-28
-2°C1993-04-09
|
| May | 30°C2026-05-18
12°C1983-05-01
|
22°C2023-05-29
3°C2021-05-02
|
| June | 32°C2025-06-30
17°C2008-06-02
|
25°C2005-06-27
8°C1981-06-01
|
| July | 35°C1994-07-17
19°C1993-07-01
|
27°C2026-07-25
15°C1982-07-04
|
| August | 38°C2026-08-03
21°C2001-08-30
|
28°C2026-08-07
15°C2002-08-21
|
| September | 35°C2026-09-02
16°C1980-09-25
|
26°C2024-09-14
5°C1987-09-27
|
| October | 30°C2021-10-03
9°C1997-10-31
|
24°C2016-10-04
-1°C1986-10-30
|
| November | 25°C2023-11-05
4°C1996-11-30
|
19°C2000-11-01
-6°C1981-11-09
|
| December | 22°C2018-12-04
-2°C1980-12-29
|
14°C1984-12-10
-17°C1980-12-31
|
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) | 22°C2018-12-04
-4°C1981-02-26
|
16°C2024-02-20
-17°C1980-12-31
|
| Spring (Mar–May) | 30°C2026-05-18
1°C2015-03-10
|
22°C2023-05-29
-9°C1987-03-01
|
| Summer (Jun–Aug) | 38°C2026-08-03
17°C2008-06-02
|
28°C2026-08-07
8°C1981-06-01
|
| Autumn (Sep–Nov) | 35°C2026-09-02
4°C1996-11-30
|
26°C2024-09-14
-6°C1981-11-09
|
All-time records
The most extreme value Kumamoto has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.