Hiroshima in August
Not the best time
August combines brutal heat with significant crowds for Peace Memorial Day. The weather is punishing, but the commemorative events provide profound, meaningful experiences.
Weather
August peaks as Hiroshima's hottest, most humid month with temperatures regularly hitting the mid-30s. The combination of heat and moisture creates dangerously uncomfortable conditions. Evening temperatures barely drop below 25°C.
33°C high26°C low10 rain days
Crowds & Cost
high crowds
~$135/day average
Events & Festivals
- •Peace Memorial Ceremony (August 6)
- •Obon Festival
- •Hiroshima Peace Memorial Day
August Tips
- •Book accommodations early for Peace Memorial Day - the city fills up
- •Plan indoor activities during peak heat hours (11am-4pm)
- •Carry cooling towels and electrolyte drinks
All Months
March through May brings cherry blossoms and perfect weather. The Peace Park becomes a sea of pink petals in early April, and temperatures hover around 20°C. Book accommodations early — this is peak season.
September through November offers the sweet spot of fewer crowds and comfortable weather. Fall colors on Miyajima Island are spectacular, especially around Momijidani Park in late November.
Summer gets brutally hot and humid. We're talking 35°C with 80% humidity in July and August. But if you can handle it, summer festivals light up the city, and you'll have popular spots more to yourself.
Winter stays mild compared to northern Japan, but many outdoor activities on Miyajima shut down. The upside? Hotel prices drop significantly, and you'll have the memorial sites almost to yourself.
Hiroshima Scores
Solo
8/10
Couples
5/10
Families
7/10
Adventure
4/10
Budget
6/10
Luxury
6/10
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