Month guide · Hiroshima · Japan
Hiroshima in August
What August is really like in Hiroshima: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: As6022014, CC BY-SA 3.0
Quick answer
August is a quieter month with trade-offs. Expect average highs of 33°C (91°F), lows of 25°C (77°F), about 8 rainy days and roughly 13.4 hours of daylight. The hottest month. The 6 August memorial ceremony and evening lantern floating are deeply moving but very crowded.
Key facts
- Average high / low
- 33°C (91°F) / 25°C (77°F)
- Rainy days
- About 8
- Daylight
- About 13.4 hours
- Crowds
- Busy
- Hotel prices
- High
Weather in August
August is the warmest month in Hiroshima: days average 33°C (91°F) against a yearly average high of 21°C (70°F), and nights fall to about 25°C (77°F). Rain falls on roughly 8 of its 31 days. Compared with July (31°C (88°F)), August is warmer; by September highs drop to around 29°C (84°F).
- Sunrise (15 August)
- About 05:31
- Sunset (15 August)
- About 18:58
- Daylight
- About 13.4 hours
Summer (June–August). A rainy June and early July, then hot, humid weather; the 6 August ceremony is the year's most significant day.
Crowds and prices
On a 1–5 scale, August rates 4 for crowds (the peak is April at 4) and 4 for hotel prices (highest in April). Book accommodation early: August is one of the pricier months.
Events in August
- Peace Memorial Ceremony and lantern floating on the Motoyasu River (6 August)
- Obon holiday period (mid-August)
Dates move from year to year. Check the organiser’s site before booking travel around an event.
What to do in August
With intense heat, plan around indoor sights and keep outdoor time flexible.
Experience · Peace Park and Hondori
Okonomimura
A building near Hondori with floors of small okonomiyaki stalls, each with a hot griddle counter where cooks layer batter, cabbage, noodles, pork and egg in front of you.
- Time needed
- 1 hour
- Cost
- Low cost
- Food
- Rainy day
- After dark
Street · Peace Park and Hondori
Hondori Shopping Arcade
Use it as a covered route between the Peace Park and Hatchobori on rainy days.
- Time needed
- 1 hour
- Cost
- Free
- Shopping
- Free
- Rainy day
Gallery · Hakushima and the castle
Hiroshima Museum of Art
A domed museum near the castle with a strong collection of French Impressionist and post-Impressionist painting — including works by Monet, Renoir, Van Gogh and Picasso — alongside modern Japanese oil painting.
- Time needed
- 1–1.5 hours
- Cost
- Mid-priced
- Art
- Rainy day
Gallery · Hiroshima Station area
Hiroshima City Museum of Contemporary Art
Walk through Hijiyama Park's sculpture paths and viewpoint after your visit.
- Time needed
- 1.5 hours
- Cost
- Low cost
- Art
- Rainy day
- Architecture
What to pack
For highs near 33°C, lows near 25°C and 8 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; a packable rain jacket for showers; comfortable walking shoes.
Is August a good time to visit Hiroshima?
A quieter month with trade-offs, with 2 notable events on the calendar. If your dates are flexible, March–May and October–November are better overall. Compare every month.
Hiroshima in other months
Questions travellers ask
+Is August a good time to visit Hiroshima?
It is a quieter month with trade-offs. The hottest month. The 6 August memorial ceremony and evening lantern floating are deeply moving but very crowded.
+How warm is Hiroshima in August?
Average highs are around 33°C (91°F) and lows around 25°C (77°F).
+Does it rain a lot in Hiroshima in August?
Expect rain on about 8 days of the month.