Osaka Weather in September
28.7°C high · 20.1°C low · 182 mm rain · 6.1h sun
Sep is a warm month in Osaka — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 28.7°C |
| Average low | 20.1°C |
| Rainfall | 182 mm |
| Sunshine | 6.1 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 Osaka in September.
Osaka weather by month
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Frequently asked questions
What is the weather in Osaka in September?
Highs of 28.7°C and lows of 20.1°C, with about 182 mm of rain and 6.1 hours of sunshine per day.
Is September a good time to visit Osaka?
Sep is a warm month in Osaka — not peak season, but a good time to avoid crowds.
What to do in Osaka · Best time to visit Osaka
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.