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Best time to visit Hiroshima: month by month
Short answer
Spring (late March to May, with cherry blossoms in early April) and autumn (October to November) are best, with highs of about 15–22°C. June brings the rainy season, and July and August are hot and humid at about 29–30°C.
Month by month
| Month | High | Low | Rainy days | Crowds |
|---|---|---|---|---|
| Jan | 9°C | 0°C | 6 | low |
| Feb | 10°C | 1°C | 6 | low |
| Mar | 15°C | 5°C | 10 | medium |
| Apr | 18°C | 9°C | 10 | high |
| May | 22°C | 14°C | 10 | high |
| Jun | 25°C | 18°C | 14 | low |
| Jul | 29°C | 23°C | 17 | medium |
| Aug | 30°C | 24°C | 17 | high |
| Sep | 28°C | 21°C | 12 | medium |
| Oct | 22°C | 13°C | 5 | medium |
| Nov | 17°C | 8°C | 5 | high |
| Dec | 11°C | 2°C | 4 | low |
Temperatures and rainy days: Copernicus ERA5 averages, 2021–2023. Crowd levels are our estimate.
Season by season
Spring (Mar–May)
About 15°C in March, 18°C in April and 22°C in May; cherry blossoms in early April and busy Golden Week in early May.
Summer (Jun–Aug)
The rainy season in June, then hot and humid July and August (about 29–30°C, lows 23–24°C) with rain on about 14–17 days a month; 6 August brings the Peace Memorial Ceremony.
Autumn (Sep–Nov)
September is still warm (28°C) with typhoon risk; October (22°C) and November (17°C) are dry and clear, with maple colours on Miyajima.
Winter (Dec–Feb)
Cool and dry, about 9–11°C by day and 0–2°C at night; quiet, with grilled oysters in season.
Events worth planning around
- Cherry blossom season (early April)
- Hiroshima Flower Festival during Golden Week (early May)
- Peace Memorial Ceremony and lantern floating on the Motoyasu River (6 August)
- Saijo Sake Festival (October; check dates)
When to avoid
Avoid June if you dislike rain, and July–August if you dislike heat and humidity; around 6 August hotels are busy, though the ceremony is a moving time to visit.
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Common questions
What is the best time to visit Hiroshima?
Spring (late March to May) and autumn (October to November).
When is the rainy season?
Usually June into July.
What happens on 6 August?
The Peace Memorial Ceremony in the Peace Park and, in the evening, lanterns floated on the Motoyasu River.