How hot is Tokyo in September?

Daytime highs in Tokyo in September average 28°C (83°F); nights drop to about 21°C.

Does it rain in Tokyo in September?

Expect around 14.2 rainy days and 189 mm of rainfall in September.

Is September a good time to visit Tokyo?

September is a fair shoulder-season month in Tokyo — decent conditions with some trade-offs. Overall travel score: 6.6/10. The best months are April–May & October–November.

Tokyo weather in September

September is a fair shoulder-season month in Tokyo — decent conditions with some trade-offs. Expect highs around 28°C, lows near 21°C, and about 14.2 days with rain.

6.6 · Fairtravel score for September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Avg high

28°C

Avg low

21°C

Rainfall

189 mm

Rain days

14.2

Sunshine

7.9 h/day

Daylight

12.2 h

What to pack for Tokyo in September

light, breathable clothing
sun protection (hat, SPF 50)
a compact umbrella or rain shell — rain is frequent
expect humid, sticky conditions

Humidity averages 81%; max daily wind around 24 km/h.

How September compares

Best months in Tokyo: April–May & October–November. See the full best time to visit Tokyo guide.

Tokyo in September: the details

In September, Tokyo sees average daytime highs of 28°C (83°F) and overnight lows of 21°C (70°F). Rainfall totals roughly 189 mm across 14.2 rainy days, and the sun shines about 7.9 hours per day with 12.2 hours of daylight mid-month. Relative humidity averages 81%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Tokyo, Japan (35.69, 139.69) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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