May · Japan
Best time to visit Hiroshima in May Weather, crowds & prices
Weather in Hiroshima in May
Average temperature 18°C, 176 mm of rain, about 23 days with 6+ hours of sunshine and 76% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.8/10
Ranked #7 of 12 months
- Avg temp
- 18°C
- Rainfall
- 176 mm
- Humidity
- 76%
- Days with 6h+ sun
- 23
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Hiroshima scores 6.8/10 for sightseeing and cultural travel - ranked #7 of 12. Expect around 18°C, 176 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
Peace park memorials and island shrine ferries peak May through September.
May in Hiroshima — middling scores, decent value
May averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 176 mm — wet for this destination — but about 23 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 6.8/10 here, 7th of 12 months, against 8.7/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? October scores 1.9 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Hiroshima in May?
- In May, Hiroshima averages 18°C, 176 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 6.8/10.
- Is May a good time to visit Hiroshima?
- May earns a 6.8/10 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 May?
- Expect about 176 mm of rain in May. Average humidity is 76% and there are about 23 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.