Hiroshima Climate by Month
The temperature in Hiroshima can vary greatly throughout the year.
The temperatures shift from very warm
to cold.
It also experiences much rain/snowfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to chilly in Hiroshima. Average daytime temperatures reach a very warm 32°C in August. In January, the coolest month of the year, temperatures drop to a chilly 10°C. At night, expect cooler temperatures, averaging 2°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Hiroshima has a relatively rain/snowy climate with high precipitation levels, averaging 1426 mm of rain/snowfall annually. Hiroshima can be quite wet during June, receiving approximately 212 mm of precipitation over 17 rainy days. In contrast January, experiences much drier conditions, with 54 mm of rainfall, spread across 17 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Hiroshima experiences moderate variation in sunshine hours across the seasons. With 7.1 hours daily sunshine in May, it dips to 4.6 hours in January, offering a balanced mix of sunny and overcast days.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is low throughout the year in Hiroshima.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Hiroshima ranges from 1°C in July to 3°C in October.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Hiroshima in Japan
During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in June, July and September.
August has an average maximum temperature of 32°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 10°C.
June tops the wettest month list with 212 mm of rainfall.
January is the driest month with 54 mm of precipitation.
May is the sunniest month with an average of 212 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
