Hiroshima, Japan weather records
Record high and low temperatures for Hiroshima, Japan, 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 38°C on 1994-08-08; its coldest fell to -10°C on 1981-02-26.
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 | 19°C1989-01-19
-5°C2004-01-22
|
12°C1989-01-19
-7°C2016-01-24
|
| February | 19°C2014-02-02
-4°C1984-02-07
|
10°C1992-02-29
-10°C1981-02-26
|
| March | 22°C2023-03-23
1°C2005-03-13
|
12°C2023-03-23
-6°C1984-03-01
|
| April | 26°C1998-04-29
6°C2020-04-12
|
17°C1998-04-23
-4°C1987-04-01
|
| May | 31°C2014-05-31
12°C1991-05-02
|
20°C2004-05-30
2°C1991-05-04
|
| June | 34°C2022-06-30
17°C1998-06-02
|
23°C2005-06-30
8°C1989-06-12
|
| July | 37°C1994-07-17
21°C2003-07-01
|
25°C2023-07-28
11°C1982-07-01
|
| August | 38°C1994-08-08
21°C2003-08-14
|
25°C2024-08-30
13°C1981-08-06
|
| September | 36°C1994-09-01
17°C1987-09-27
|
25°C2024-09-15
6°C1987-09-28
|
| October | 29°C2013-10-07
7°C1997-10-31
|
21°C2016-10-03
2°C1986-10-31
|
| November | 25°C2023-11-02
3°C1989-11-29
|
16°C2011-11-05
-3°C2008-11-20
|
| December | 21°C2018-12-04
-2°C2014-12-17
|
12°C1992-12-07
-6°C1984-12-30
|
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) | 21°C2018-12-04
-5°C2004-01-22
|
12°C1992-12-07
-10°C1981-02-26
|
| Spring (Mar–May) | 31°C2014-05-31
1°C2005-03-13
|
20°C2004-05-30
-6°C1984-03-01
|
| Summer (Jun–Aug) | 38°C1994-08-08
17°C1998-06-02
|
25°C2024-08-30
8°C1989-06-12
|
| Autumn (Sep–Nov) | 36°C1994-09-01
3°C1989-11-29
|
25°C2024-09-15
-3°C2008-11-20
|
All-time records
The most extreme value Hiroshima 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.