Hiroshima weather in August

In August, Hiroshima has an average high of 32.8°C (91°F) and an average low of 25.1°C (77°F). Expect about 8 rainy days (131 mm, 5.2 in of rain for the month). Daytime highs are 1.9°C warmer than in July.

Average high32.8°C / 91°F
Average low25.1°C / 77°F
Daily average28.5°C / 83°F
Rain131 mm / 5.2 in
Rainy days (1 mm or more)8 days
Sunshine207 hours in the month
Days of 30°C (86°F) or more27 days
Nights of 25°C (77°F) or more18 nights

Averages for 1991–2020 at the Japan Meteorological Agency's Hiroshima weather station. Individual years vary.

What's in bloom in August

No cherry blossoms, plum blossoms or autumn colors are usually out in Hiroshima in August. See other months for the flower seasons.

What to wear

Light, breathable clothes, a hat and water. It is hot and humid; plan indoor breaks in the afternoon.

Hiroshima month by month

← July ·All 12 months ·September →

Other cities in August

CityHigh / lowRainy days
Tokyo31° / 24°C8
Kyoto34° / 25°C8
Osaka34° / 26°C7
Nara33° / 24°C8
Fukuoka33° / 25°C10
Nagoya33° / 25°C9
Sendai28° / 22°C11
Sapporo26° / 19°C10
Naha32° / 27°C12

See Japan weather in August for all regions.

Source: Japan Meteorological Agency climate normals 1991–2020 and phenological observations (processed by Japan Bloom Calendar). Not a forecast.