Climate guide for Tokyo, Japan

Tokyo in September

Weather, crowds & best time to visit

How to read the score (0–10)
05810
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September · Japan

Best time to visit Tokyo in September Weather, crowds & prices

Weather in Tokyo in September

Average temperature 25°C, 200 mm of rain, about 22 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).

September score

5.6/10

Ranked #10 of 12 months

Full year for Tokyo
Avg temp
25°C
Rainfall
200 mm
Humidity
79%
Days with 6h+ sun
22
Crowd Density
Quiet / Uncrowded
Average Expenses
$ · Budget Friendly ($)

September in Tokyo scores 5.6/10 for sightseeing and cultural travel - ranked #10 of 12. Expect around 25°C, 200 mm of rain, and roughly 22 days with 6+ hours of sunshine this month.

Tokyo’s finest days weave quiet contrasts: a hushed shrine at dawn, a tiny lunch counter at noon, and glowing neon districts after dark—best savored in the crisp clarity of late autumn and winter.

September in Tokyo: mixed conditions, plan around the weather

September averages 25°C (76°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Monthly rainfall reaches 200 mm — wet for this destination — but about 22 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 5.6/10 here, 10th of 12 months, against 7.7/10 in the destination's best month.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

Plan for low-season pricing, with crowds are light for this destination.

Flexible dates? December scores 2.1 points higher here — enough to change the trip.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Tokyo in September?
In September, Tokyo averages 25°C, 200 mm of rain, and about 22 days with 6+ hours of sunshine. Its climate-comfort score is 5.6/10.
Is September a good time to visit Tokyo?
September earns a 5.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Tokyo in September?
Expect about 200 mm of rain in September. Average humidity is 79% and there are about 22 days with 6+ hours of sunshine.

Curated in Tokyo

Tickets & experiences

Things to do in Tokyo

Tokyo, Japan. Live activities and tours from GetYourGuide, matched to this destination.