October · Japan
Best time to visit Hiroshima in October Weather, crowds & prices
Weather in Hiroshima in October
Average temperature 18°C, 60 mm of rain, about 25 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
October score
8.7/10
Ranked #1 of 12 months
- Avg temp
- 18°C
- Rainfall
- 60 mm
- Humidity
- 74%
- Days with 6h+ sun
- 25
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
October in Hiroshima scores 8.7/10 for sightseeing and cultural travel - the single best month of the year. Expect around 18°C, 60 mm of rain, and roughly 25 days with 6+ hours of sunshine this month.
Peace park memorials and island shrine ferries peak May through September.
October in Hiroshima — the year's strongest window
Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 60 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 11.3 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Hiroshima at 8.7/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Hiroshima in October?
- In October, Hiroshima averages 18°C, 60 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 8.7/10.
- Is October a good time to visit Hiroshima?
- October earns a 8.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hiroshima in October?
- Expect about 60 mm of rain in October. Average humidity is 74% and there are about 25 days with 6+ hours of sunshine.
Curated in Hiroshima
Tickets & experiences
Things to do in Hiroshima
Hiroshima, Japan. Live activities and tours from GetYourGuide, matched to this destination.