Hiroshima Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Hiroshima, Hiroshima, Japan. These averages rely on historical data collected over 30 years, 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:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

June, Hiroshima’s wettest month, receives 127 mm (5 in) of rainfall and has a maximum daytime temperature of 27°C (81°F). During the driest month January you can expect a temperature of 10°C (50°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.