Tokyo Weather in September
Japan · 30-year monthly averages
🤔 Fair time to visit
September in Tokyo is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 20°C (69°F). Expect roughly 225mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
Avg high
28°C
82°F
Avg low
20°C
69°F
Rainfall
225mm
very wet
Rainy days
11
days with ≥1mm
☀️ About 127 hours of sunshine over the month (~4h/day).
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
- compact umbrella or rain jacket
September vs the rest of the year
FAQ
- How hot is Tokyo in September?
- September in Tokyo is warm, with average daytime highs around 28°C (82°F) and nighttime lows near 20°C (69°F). Expect roughly 225mm of precipitation spread over about 11 rainy days, and heavy rainfall is common — this is peak wet season territory.
- Does it rain a lot in Tokyo in September?
- Tokyo sees around 225mm of precipitation in September on average — very wet by global standards.
- Is September a good time to visit Tokyo?
- September is a workable month to visit Tokyo, but expect some weather trade-offs.