Hiroshima · SummerMonth summary
Hiroshima weather in August
✅ Good
🌡️ Temperature min / max
24°C – 31°C
🌧 Rainy days
39% of days
☀️ Sunshine
12.2h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
7.6/10
📅 📅 Best month
May (7.7/10)
Quick decision
Should you visit Hiroshima in August?
✅ Good
✅ Yes if: you want to explore cultural sites and local food.
❌ No if: you need guaranteed sunshine for photos or outdoor activities.
Our take: Hiroshima in August: 31°C and 12.2h of sunshine. Decent, but not the peak.
By trip type
Hiroshima in August by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in August
🎯 One of the best months — 31°C, maximum sunshine and ideal conditions In the height of summer, Hiroshima sees high temperatures (31°C). Heat is a factor for outdoor activities. Expect rain on 39% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if May (7.7/10) remains theoretically better.
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All months for Hiroshima
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 0°C | 9°C | 22% | 1.7 | 8.6h | 5.3/10 |
| 🌫️ February | 1°C | 10°C | 25% | 2.5 | 9.3h | 5.5/10 |
| ⛅ March | 4°C | 14°C | 32% | 3.9 | 10.1h | 6.4/10 |
| 🌤️ April | 8°C | 18°C | 31% | 5.2 | 10.8h | 7.1/10 |
| 🌤️ May | 13°C | 22°C | 30% | 4.8 | 11.6h | 7.7/10 |
| 🌤️ June | 18°C | 25°C | 48% | 7.6 | 10.1h | 7.4/10 |
| 🌤️ July | 23°C | 29°C | 46% | 9.2 | 11.8h | 7.7/10 |
| 🌤️ August | 24°C | 31°C | 39% | 6.5 | 12.2h | 7.6/10 |
| 🌤️ September | 21°C | 28°C | 47% | 7.0 | 10.0h | 7.7/10 |
| 🌤️ October | 14°C | 22°C | 27% | 3.5 | 9.8h | 7.6/10 |
| ⛅ November | 7°C | 17°C | 19% | 2.1 | 9.9h | 7.2/10 |
| 🌫️ December | 2°C | 11°C | 22% | 1.6 | 8.6h | 5.9/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Hiroshima averages 31°C, 39% rainy days and 12.2h of sunshine per day. Overall weather score: 7.6/10.
See methodology →
Comparison
August vs May (best month)
The best month is May (score 7.7/10). Difference:
- 🌡️ Max temperature : -9°C
- 🌧 Rainy days : -9%
- ☀️ Sunshine : -0.6h/day
FAQ
FAQ — Hiroshima in August
Is August a good time to visit Hiroshima?
August is an excellent time to visit Hiroshima (score 7.6/10). With 31°C, 12.2h of sunshine and 39% rain, conditions are very favourable.
What to do in Hiroshima in August?
With 31°C max and 12.2h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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