Japan Weather Today日本語Japan weather in September
Still hot and humid in the first half, with typhoons most likely now; cooler, clearer days arrive at the end of the month.
Average temperatures in September
| City | Average high | Average low |
|---|---|---|
| Sapporo | 23°C | 14°C |
| Tokyo | 28°C | 20°C |
| Osaka | 30°C | 22°C |
| Fukuoka | 29°C | 22°C |
| Okinawa (Naha) | 30°C | 26°C |
Rounded averages from the Japan Meteorological Agency (1991–2020). Actual weather varies from year to year: check the live forecast before you go.
Region by region
Hokkaido
Cool and clear; the first autumn colours in the mountains, like Daisetsuzan.
Tohoku and the north
Comfortable and warm; the rice harvest.
Tokyo and Kanto
Around 27°C in the day; still humid, with typhoons and autumn rain.
Kyoto and Osaka
Hot early in the month, cooling later; still humid.
Kyushu
Hot, with typhoons passing more often than further north.
Okinawa
Hot and sunny with typhoon risk; the sea is at its warmest.
What to pack
Summer clothes, a compact umbrella and a light layer for late September.
Highlights in September
Moon-viewing (tsukimi), the first autumn leaves in Hokkaido, and the Silver Week holidays in some years.
Watch out for
The main typhoon month for Tokyo, Kyoto and Kyushu: check the typhoon tracker and keep plans flexible.
Questions
Is September a good time to visit Japan?
Still hot and humid in the first half, with typhoons most likely now; cooler, clearer days arrive at the end of the month.
What should I pack for Japan in September?
Summer clothes, a compact umbrella and a light layer for late September.
How warm is Tokyo in September?
On average about 28°C in the day and 20°C at night.
Check the forecast for
