Hiroshima Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Hiroshima, Hiroshima, Japan. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

While the amount of sunshine in Hiroshima changes moderately throughout the year, the annual total remains impressive at around 2051 hours. Expect slightly brighter days in May and a subtle dip in January.

Daily hours of sunshine

Enjoy up to 7.1 hours of daily sun in May, and experience slightly darker atmosphere in January, with about 4.6 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 51% of the time during the day in August, the highest percentage of any month. June has the lowest percentage at 37%.

Hiroshima enjoys an average of 2051 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

July, Hiroshima’s wettest month, receives 158 mm (6.2 in) of rainfall and has a maximum daytime temperature of 30°C (86°F). During the driest month January you can expect a temperature of 9°C (48°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Hiroshima Precipitation page.