Average Monthly Sunshine in Otaru

The graphs on this page shows the average number of hours per month and per day that Otaru receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Otaru varies. It peaks at 199 hours in May and drops to 87 hours in December. The total annual amount of sun is 1749 hours.

Daily hours of sunshine

For those who appreciate different seasons, Otaru serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 6.6 hours of sunshine daily, and embrace the darker days in December, offering only 2.9 hours of daily sunlight.

Otaru’s total hours of sunshine compared to other major cities

Otaru enjoys an average of 1749 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

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.

Other climate information

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

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.