Hiroshima weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Hiroshima September weather at a glance
In September, Hiroshima averages 25.8°C, with typical highs of 30.1°C and lows of 22.3°C. The historical average is 15 wet days and 80% humidity.
Hiroshima September temperature & humidity
Hiroshima September rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Hiroshima in September
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 15 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 30.1°C
- Morning & eveningLight layer for air-conditioned rooms · average low 22.3°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Hiroshima September sunrise & sunset times
2026 September · Local time (Asia/Tokyo)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 05:43 | 18:37 | 12h 54m |
| 2026-09-15 | 05:53 | 18:18 | 12h 25m |
| 2026-09-30 | 06:04 | 17:56 | 11h 53m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Hiroshima travel updates
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Best months to visit Hiroshima
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Hiroshima weather like in September?
In September, Hiroshima averages 25.8°C, with typical highs of 30.1°C and lows of 22.3°C. The historical average is 15 wet days and 80% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Hiroshima in September?
There are about 15 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Hiroshima in September?
Expect intense heat. Pack lightweight quick-dry clothing, sun protection and a refillable bottle. Rain is frequent at roughly 15 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
What are the best months to visit Hiroshima?
Recent weather data rates May, October, November among the more comfortable months.
Where can I check Hiroshima weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Hiroshima in September?
On 2026-09-15, calculated sunrise is 05:53 and sunset is 18:18 in local time (Asia/Tokyo). Times vary by date and terrain.
Hiroshima weather by month
More Japan destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations