Japan Hiroshima Weather in December — Climate Guide
December in Hiroshima is moderate
Hiroshima Weather in December — Quick Answer
As of 2026- Avg temp
- 12° / 4°
- Rainfall
- 50mm · 6 days
- Crowds
- Moderate
As of 2026, Hiroshima in December averages a high of 12°C and low of 4°C with 50mm of rain over about 6 days. Cold. Warm coat + sweater + scarf.
December is moderate for Hiroshima.
Cold but festive. Hiroshima Dreamination illumination at Peace Boulevard. New Year Dec 29-Jan 3 closures.
Travel score
Hiroshima December Weather Stats
Avg High
12°C
Avg Low
4°C
Rainy Days
6
50mm total
Sunshine
5h
Daily avg
Humidity
65%
moderate
UV Index
2
Low
Wind
8 km/h
Gusts 22
Sea Temp
16°C
no swimming
Crowds
Moderate
At attractions
December Sunrise & Sunset
Air Quality
PM2.5
18 μg/m³
PM10
30 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
10°C
Nighttime
2°C
Humidity and wind affect how the actual temperature feels.
Wind
8 km/h
Max gust 22 km/h
Activities Recommended for December
December Travel Pros & Cons
Pros
- Dreamination illumination
- Hatsumode prep
- Cool clear skies
- Indoor Okonomimura
Cons
- 4-12°C cold
- Daylight 9.5h
- Dec 29-Jan 3 closures
December Events & Festivals
- Christmas markets + Dreamination illumination
- New Year preparation
Hiroshima in December — Full Picture
Cold but festive. Hiroshima Dreamination illumination at Peace Boulevard. New Year Dec 29-Jan 3 closures.
What to Wear & What to Pack
Cold. Warm coat + sweater + scarf.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18.7°C
9.7°C
10/mo
Summer (Jun·Jul·Aug)
30.3°C
22.3°C
10.7/mo
Autumn (Sep·Oct·Nov)
23°C
14°C
7.3/mo
Winter (Dec·Jan·Feb)
Current11°C
2.7°C
6.7/mo
Hiroshima Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 10° | 2° | 7d·50mm | 5h | 65% | 2 | Quiet | Low season | |
| 11° | 2° | 7d·60mm | 6h | 65% | 3 | Quiet | Low season | |
| March (Best) | 14° | 5° | 10d·110mm | 7h | 65% | 4 | Very busy | Peak |
| April (Best) | 19° | 10° | 10d·130mm | 8h | 65% | 6 | Very busy | Peak |
| 23° | 14° | 10d·130mm | 8h | 70% | 7 | Very busy | Peak | |
| 27° | 19° | 13d·230mm | 5h | 75% | 7 | Moderate | Shoulder | |
| 31° | 24° | 11d·250mm | 6h | 75% | 9 | Busy | Peak | |
| 33° | 24° | 8d·130mm | 8h | 73% | 10 | Very busy | Peak | |
| 29° | 20° | 10d·200mm | 6h | 75% | 6 | Moderate | Shoulder | |
| October (Best) | 23° | 14° | 6d·100mm | 7h | 70% | 5 | Busy | Peak |
| November (Best) | 17° | 8° | 6d·80mm | 5h | 65% | 3 | Busy | Peak |
| 12° | 4° | 6d·50mm | 5h | 65% | 2 | Moderate | Shoulder |
View Other Months
Hiroshima December Hotel Picks
Frequently Asked Questions
Is December a good time to visit Hiroshima?
Hiroshima in December is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Hiroshima in December?
Hiroshima December averages a high of 12°C and a low of 4°C.
Does it rain much in Hiroshima in December?
Hiroshima December averages 50mm of rainfall over about 6 rainy days.
What should I wear in Hiroshima in December?
Cold. Warm coat + sweater + scarf.
What time are sunrise and sunset in Hiroshima in December?
Hiroshima December sunrise is 07:10 and sunset is 16:55, with 9h 45min of daylight.
What's the air quality like in Hiroshima in December?
Hiroshima December air quality (AQI) averages 50, rated Good. PM2.5 averages 18μg/m³.
What activities are recommended in Hiroshima in December?
In December, Hiroshima is great for Hiroshima Dreamination, Peace Park, Indoor Okonomimura.
Is December peak season in Hiroshima?
Hiroshima December crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Hiroshima
View Other Months
Planning a December trip to Hiroshima?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.