Weather in Ōnojō in September
Ōnojō, Japan averages a high of 27.9°C (82.2°F) and low of 20.6°C (69.1°F) in September, with 13 rain days and 8.7 hours of daily sunshine. Travel score: 74.4/100 (Good). The best time to visit Ōnojō is October.
High
28°C82°F
Low
21°C69°F
🌧️
13
rain days
☀️
8.7
hrs/day sunshine
💧
82%
humidity
74— Good
September in Ōnojō is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Ōnojō?
How much does it rain in Ōnojō in September?
Ōnojō receives an average of 181.3mm of rainfall across 13 rainy days in September. The annual total is 1686.5mm.
What should I pack for Ōnojō in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
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