Weather in Hiroshima in September
September in Hiroshima is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.
In Japan, this is how Hiroshima actually wears September, not how a country centroid would. Compared with August and January, September sits in the middle of Hiroshima's year.
Pack for Hiroshima in September, not for a brochure that was photographed in another season.
- Average temp
- 25°C
21–29°C
- Rainfall
- 153 mm
A wet month
- Sunshine
- 5.8 h
hours per day
- Wind
- 10 km/h
What to expect
Daytime
Warm days in Hiroshima in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.
You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.
Rain
September is a wetter month in Hiroshima. Showers are part of the deal, not a spoiled surprise.
Waterproof shoes matter more than a rain plan for a beach, especially if a beach is not why you came. Build indoor hours into the afternoon.
Evening
Evenings stay warm.
What to pack
Rain jacket
Where to stay in Hiroshima
Dates are a starting point for September.
Travel guides for Hiroshima
What to read before you book.
Average weather in Hiroshima
TemperatureRainfall
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Hiroshima
Climate averages for Hiroshima, 1991–2020.
The best time to visit Hiroshima is between August and November, the most comfortable stretch of the year on these averages.
August is the hottest month, with an average around 29°C.
July is the wettest month, with about 299 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
