December · Japan
Best time to visit Hiroshima in December Weather, crowds & prices
Weather in Hiroshima in December
Average temperature 6°C, 29 mm of rain, about 25 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
8.0/10
Ranked #2 of 12 months
- Avg temp
- 6°C
- Rainfall
- 29 mm
- Humidity
- 71%
- Days with 6h+ sun
- 25
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Hiroshima scores 8.0/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 6°C, 29 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.
December in Hiroshima: strong conditions, 2nd of 12
December averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Expect 29 mm of rain — occasional showers rather than washed-out days — alongside about 25 days with 6+ hours of sunshine and 9.9 daylight hours.
It scores 8/10 here, 2nd of 12 months, against 8.7/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in.
Plan for peak pricing, with this is one of the busiest months here. 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 December?
- In December, Hiroshima averages 6°C, 29 mm of rain, and about 25 days with 6+ hours of sunshine. Its climate-comfort score is 8.0/10.
- Is December a good time to visit Hiroshima?
- December earns a 8.0/10 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 December?
- Expect about 29 mm of rain in December. Average humidity is 71% 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.