Otaru Sunshine Hours by Month

In climate discussions, the hours of sunlight reveal much about a location. This page shows the total number of hours of direct sunlight per month and the average hours per day in Otaru, Hokkaido, Japan. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Otaru. Expect long, bright days with 199 hours in May and darker periods with just 87 hours in December. The total annual amount of sun is 1749 hours.

Daily hours of sunshine

In Otaru, summer days are longer and more sunny, with daily sunshine hours peaking at 6.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.9 hours per day.

Otaru enjoys an average of 1749 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.

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

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

August, Otaru’s wettest month, receives 180 mm (7.1 in) of rainfall and has a maximum daytime temperature of 24°C (75°F). During the driest month April you can expect a temperature of 8°C (46°F).

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