Weather in Kusatsu in September
Kusatsu, Japan averages a high of 26.9°C (80.4°F) and low of 19.7°C (67.5°F) in September, with 12 rain days and 8.7 hours of daily sunshine. Travel score: 76.5/100 (Good). The best time to visit Kusatsu is August.
High
27°C80°F
Low
20°C67°F
🌧️
12
rain days
☀️
8.7
hrs/day sunshine
💧
80%
humidity
77— Good
September in Kusatsu is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Kusatsu?
How much does it rain in Kusatsu in September?
Kusatsu receives an average of 150.5mm of rainfall across 12 rainy days in September. The annual total is 1429.8mm.
What should I pack for Kusatsu in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
9 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