Weather in Shinjuku in September
Shinjuku, Japan averages a high of 26.4°C (79.5°F) and low of 20.2°C (68.4°F) in September, with 13 rain days and 8 hours of daily sunshine. Travel score: 71.4/100 (Good). The best time to visit Shinjuku is August.
High
26°C80°F
Low
20°C68°F
🌧️
13
rain days
☀️
8
hrs/day sunshine
💧
81%
humidity
71— Good
September in Shinjuku is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Shinjuku?
How much does it rain in Shinjuku in September?
Shinjuku receives an average of 181.4mm of rainfall across 13 rainy days in September. The annual total is 1420.6mm.
What should I pack for Shinjuku in September?
Essentials
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Comfortable walking shoes
Essential for exploring the city
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Light layers and t-shirts
Warm weather around 26°C
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting Japan in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31