Weather in Hiroshima in September
Hiroshima, Japan averages a high of 27.3°C (81.1°F) and low of 20.3°C (68.5°F) in September, with 12 rain days and 8.9 hours of daily sunshine. Travel score: 77.1/100 (Good). The best time to visit Hiroshima is May.
High
27°C81°F
Low
20°C69°F
🌧️
12
rain days
☀️
8.9
hrs/day sunshine
💧
79%
humidity
77— Good
September in Hiroshima is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Hiroshima?
How much does it rain in Hiroshima in September?
Hiroshima receives an average of 175.2mm of rainfall across 12 rainy days in September. The annual total is 1509mm.
What should I pack for Hiroshima in September?
Essentials
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Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
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Sunscreen SPF 30+
9 hours of sunshine daily
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Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
🎉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