Early autumn · Weather & things to do
Tokyo in September
Tokyo cools off: highs slip to 81°F (27°C), from 88°F in August, with lows of 67°F (19°C) and about 8.5 in (215 mm) of rain.
Our comfort score puts it mid-table at 54/100, 10th of 12.
- Avg high
- 81°F (27°C)
- Avg low
- 67°F (19°C)
- Rain
- 8.5 in (215 mm)
- Humidity
- 84%
- Cloud cover
- 71%
- Daylight
- ~12 h 13 min
- Comfort score
- 54/100 · Fair
What September feels like
Highs settle around 81°F (27°C), warm enough for short sleeves.
Nights cool to an average low of 67°F (19°C).
Humidity averages 84%, so the air feels sticky and the heat feels stronger than the thermometer says.
Expect regular rain: about 8.5 in (215 mm) falls in the month.
Plan around September
September sits mid-table; the best months are April and November.
- Inside the wettest three-month stretch, August – October.
- Comfort improves from 49/100 in August to 54/100.
- Our Japan Golden Route recommends Mar – May, so September falls outside its suggested window.
What to pack for September
- Light, breathable clothes81°F afternoons
- Quick-dry fabrics84% average humidity
- Rain jacket and waterproof shoes8.5 in of rain on average
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Tokyo in September
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Shinjuku Golden Gai
Six narrow lanes packed with 200+ tiny bars, each seating a handful.
Why now A sit-down stop to wait out showers in a month with 8.5 in of rain.
Tonki
Meguro tonkatsu counter since 1939, cooks working in a calm open kitchen.
Why now Easy to slot in when September's rain moves in.
Tsukiji Outer Market
Lanes of stalls selling tamagoyaki, grilled seafood and sushi near the old fish market site.
Why now Keeps part of the day dry on wetter September days.
Shibuya Crossing
The world's busiest scramble crossing, best seen from above and then crossed yourself.
Shibuya Sky
Open-air rooftop deck 230 m up Shibuya Scramble Square with 360-degree views.
Nearby in September
- Kyoto in September~224 mi · highs 81°F, 7.6 in rain · similar daytime temperatures, drier
- Osaka in September~244 mi · highs 82°F, 8.9 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~233 m to Tokyo's ~40 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Tokyo in September: quick answers
Is September a good time to visit Tokyo?
It's middling, scoring 54/100. The best months are April and November, at up to 80. Expect highs of 81°F (27°C) and 8.5 in (215 mm) of rain. Our Japan Golden Route recommends Mar – May, so September is outside its suggested window.
How hot is Tokyo in September?
Average highs are 81°F (27°C) and average lows 67°F (19°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Tokyo in September?
Yes: about 8.5 in (215 mm) of rain falls across September on average, the 2nd-wettest month of the year. The annual total is about 64.5 in (1638 mm).
What should I pack for Tokyo in September?
Bring light, breathable clothes (81°F afternoons), quick-dry fabrics (84% average humidity), rain jacket and waterproof shoes (8.5 in of rain on average) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Tokyo in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.