Hiroshima Weather in January

With daytime temperatures of 10°C (50°F) and nighttime lows of 2°C (36°F), January in Hiroshima brings low temperatures during the day. It is also the driest month of the year, with minimal rainfall.

Rainfall in Hiroshima in January

Enjoy minimal rain interruptions this month. The dry conditions make it a reliable choice for outdoor plans, even if it's not beach weather. You can typically expect 17 days of rain this month, averaging around 54 mm (2.1 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Hiroshima in January

Daytime highs in Hiroshima in January reach 10°C (50°F), with nights around 2°C (36°F). During January, the winter season is in full swing. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. Experience the mildest weather of the year in January.

Sunshine in Hiroshima in January

With about 137 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Hiroshima in January

January 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.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.

Hiroshima Temperature in January

Min Temperature 2°C (36°F)  

Max Temperature 10°C (50°F)  

Chance of Rain 57%  

Precipitation 54 mm (2.1 in)  

Rainy days 17 days  

Humidity 66%  

Windspeed 2 m/s (4 knots)  

Sunshine 137 hours  

Percentage Sunshine 45%  

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Hiroshima typically stay consistent throughout January, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 1°C (34°F).

Average temperatures in January

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Daily Historical Precipitation

51-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

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‹ January February March April May June July August September October November December ›

Historical weather for Hiroshima in January

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.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Hiroshima historical weather extremes in January

Based on 49 years of weather observations in Hiroshima between 1976 and 2025, these are the recorded extremes.

• The warmest day in January was on January 8, 1979, with a maximum of 16°C (61°F).
• On January 8, 2021, Hiroshima saw its coldest January day with temperatures maxing out at -2°C (28°F).
• The coldest night in January in Hiroshima was on January 22, 2004, with a minimum of -9°C (16°F).

What to Wear in Hiroshima in January

We recommend to layer up for chilly conditions in Hiroshima in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Hiroshima in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Japan, check out our Hiroshima's climate page.

More climate data for Hiroshima

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Hiroshima climate overview or explore weather in Japan.