Is Hiroshima hot in August?
Days are typically hot at 32.8°C, while nights average 24.8°C.
Japan · 1991–2020 normal
Hiroshima in
August.
Typical August weather in Hiroshima: 32.8°C by day, 24.8°C at night, 142 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high32.8°C
Typical low24.8°C
Rain142 mm
Wet days8
In the year-round weather comparison, August scores 34 out of 100 (October leads the year at 79). Daylight is calculated as 13 h 26 from latitude 34.40°. Open-water sea temperature is 26.3°C (31 km from the place centre).
August at a glance
What is Hiroshima like in August?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 142 mm across about 8 wet days.
How much daylight is there?
There are about 13 h 26 between sunrise and sunset at mid-month, calculated from the place latitude.
Is August a good time to visit?
August ranks 7 of 12 in our weather comparison; October ranks first.
Event window
Warm sea in August
The nearest open-water NOAA OISST 1991–2020 cell averages 26.3°C in August. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 1862415
- NOAA station
- JA000047765 · HIROSHIMA
- Station distance
- 1.6 km from the place centre
- Coverage
- Good coverage · 17 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Hiroshima is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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