Hiroshima Weather in December
With daytime temperatures of 12°C (54°F) and nighttime lows of 4°C (39°F), December in Hiroshima brings moderate temperatures during the day. Some rainfall is to be expected during the month.
Rainfall in Hiroshima in December
You can typically expect 15 days of rain this month, averaging around 59 mm (2.3 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Hiroshima in December
In December, Hiroshima gets moderate temperatures, with highs of 12°C (54°F). Nights cool to around 4°C (39°F). December is part of winter. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Hiroshima in December
The area enjoys a balanced 142 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Hiroshima in December
December sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April, May, September, October and November typically offer the best weather for Hiroshima.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.
Hiroshima Temperature in December
Min Temperature
4°C (39°F)
Max Temperature
12°C (54°F)
Chance of Rain
49%
Precipitation
59 mm (2.3 in)
Rainy days
15 days
Humidity
68%
Windspeed
2 m/s (4 knots)
Sunshine
142 hours
Percentage Sunshine
47%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hiroshima typically drop from around 13°C (55°F) at the start of December to approximately 9°C (48°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 5°C (41°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Hiroshima in December
Browse day-by-day weather records for Hiroshima spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hiroshima historical weather extremes in December
The extremes listed below come from historical weather data collected in Hiroshima from 1976 through 2025.
- On December 15, 2023, temperatures climbed to 19°C (66°F), marking the warmest December day on record.
- On December 27, 1976, Hiroshima saw its coldest December day with temperatures maxing out at 0°C (32°F).
- Hiroshima registered its coldest December night on December 22, 2005, with temperatures dropping to -7°C (19°F).
Best Places in Japan in December
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hiroshima in December
Pack for changing conditions in Hiroshima in December. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Hiroshima in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Hiroshima climate overview or explore weather in Japan.
