Weather in Ōshū in September
Ōshū, Japan averages a high of 23.7°C (74.7°F) and low of 16.3°C (61.3°F) in September, with 13 rain days and 7.5 hours of daily sunshine. Travel score: 71.3/100 (Good). The best time to visit Ōshū is June.
High
24°C75°F
Low
16°C61°F
🌧️
13
rain days
☀️
7.5
hrs/day sunshine
💧
85%
humidity
71— Good
September in Ōshū is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Ōshū?
How much does it rain in Ōshū in September?
Ōshū receives an average of 144.2mm of rainfall across 13 rainy days in September. The annual total is 1240.2mm.
What should I pack for Ōshū in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (13 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Japan in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31