Hiroshima Weather & Climate: Japan

Climate by month across Hiroshima, Japan, average temperatures, rainfall and the best time to visit.

Climate overview of Hiroshima

Hiroshima in Japan sees its peak temperatures in August (32°C (90°F)) and its coolest in January (10°C (50°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Hiroshima, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

Hiroshima offers pleasant conditions in April, May, June and October, with temperatures typically ranging from 20°C (68°F) to 27°C (81°F).

The peak heat season generally takes place in July and August.

Precipitation in Hiroshima varies considerably throughout the year. The wettest conditions occur in June with 212 mm (8.3 in) of rain, while January stays relatively dry with 53 mm (2.1 in). The region experiences its rainy season during June and July, when monthly rainfall can range from 206 mm (8.1 in) to 212 mm (8.3 in).

Visitors hoping to maximize their time in the sun should consider planning their trip for May, when daylight hours are at their peak.

Explore Hiroshima by month

Popular cities by month

Compare cities per month. Toggle cities on/off.

Hiroshima Miyajima Onomichi Fukuyama Higashihiroshima Kure
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Hiroshima

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Hiroshima 10°C (50°F) 32°C (90°F) 2°C (36°F) 24°C (75°F) 1426 mm (56 in) 2,051 hours
Miyajima 10°C (50°F) 31°C (88°F) 2°C (36°F) 24°C (75°F) 1690 mm (67 in) 2,051 hours
Onomichi 11°C (52°F) 33°C (91°F) 3°C (37°F) 25°C (77°F) 1370 mm (54 in) 2,051 hours
Fukuyama 11°C (52°F) 33°C (91°F) 3°C (37°F) 25°C (77°F) 1329 mm (52 in) 2,051 hours
Higashihiroshima 10°C (50°F) 32°C (90°F) 2°C (36°F) 24°C (75°F) 1473 mm (58 in) 2,051 hours
Kure 10°C (50°F) 30°C (86°F) 5°C (41°F) 25°C (77°F) 1550 mm (61 in) 2,051 hours

Places in Hiroshima, Japan

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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