Hiroshima weather in June
June in Hiroshima: hot, soaked, with very humid — a good time to visit.
#9 of 12 months in Hiroshima · #466 of 604 destinations to visit in June · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Hiroshima climate normals — June
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 67°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 198 mm / 7.8 in | ⛈ soaked |
| Rainy days | 15 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 19°C / 67°F | |
| Sunshine | 8.8 h/day | |
| Daylight | 14.4 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 70 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Hiroshima in June — FAQ
- Is June a good time to visit Hiroshima?
- June in Hiroshima: hot, soaked, with very humid — a good time to visit. It ranks #9 of 12 months for Hiroshima on SeasonMap's comfort score (67/100).
- What is the weather like in Hiroshima in June?
- In June, Hiroshima averages a daily high of 26.2°C and a low of 19.4°C, with about 197.5 mm of rain over roughly 15.2 rainy days.
- What is the air quality in Hiroshima in June?
- Hiroshima has a mean US Air Quality Index of about 70 in June.