Weather in Onomichi in September
Onomichi, Japan averages a high of 27.3°C (81.1°F) and low of 20.5°C (68.9°F) in September, with 10 rain days and 9 hours of daily sunshine. Travel score: 80.7/100 (Excellent). The best time to visit Onomichi is August.
High
27°C81°F
Low
21°C69°F
🌧️
10
rain days
☀️
9
hrs/day sunshine
💧
75%
humidity
81— Excellent
September in Onomichi is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Onomichi?
How much does it rain in Onomichi in September?
Onomichi receives an average of 136.6mm of rainfall across 10 rainy days in September. The annual total is 1224.1mm.
What should I pack for Onomichi 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
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
🎉Visiting Japan in September?
Don't miss any public holidays — check before you book!
Compare Onomichi
Popular comparisons:
How can I plan my trip to Onomichi?
What other cities are near Onomichi?
What are other popular cities in Japan?
What is the weather like in other months in Onomichi?
Data based on 1994–2024 averages · Last updated: 2024-12-31