Hiroshima Weather in September
27.6°C high · 19.6°C low · 247 mm rain · 6.4h sun
Sep is a warm month in Hiroshima — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 27.6°C |
| Average low | 19.6°C |
| Rainfall | 247 mm |
| Sunshine | 6.4 hours/day |
| Daylight | 12.2 hours |
What to pack in September
Pack comfortable clothes with a light layer for evenings, plus a raincoat and umbrella for Hiroshima in September.
Hiroshima weather by month
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Frequently asked questions
What is the weather in Hiroshima in September?
Highs of 27.6°C and lows of 19.6°C, with about 247 mm of rain and 6.4 hours of sunshine per day.
Is September a good time to visit Hiroshima?
Sep is a warm month in Hiroshima — not peak season, but a good time to avoid crowds.
What to do in Hiroshima · Best time to visit Hiroshima
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.