Best avoided
Japan in September: Weather, Crowds & What's On
What September is actually like in Japan — average highs and lows, how much rain to expect, public holidays that fill trains and hotels, and verified places to go.
- Average high
- 28°C
- Average low
- 22°C
- Rainfall
- 234mm
Where this month sits in the year
The 3rd warmest month of Japan's year. The 2nd wettest month, at 13% of the year's rain.
Public holidays in September
Domestic travel peaks around these dates — book earlier and expect busier sights.
- September 21 敬老の日 · Respect for the Aged Day
- September 23 秋分の日 · Autumnal Equinox Day
On in September
Planning a trip this month?
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Climate figures are 10-year averages for Tokyo, from NASA POWER; holidays from public calendars. Updated monthly.