Average Monthly Sunshine in Iiyama

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

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Iiyama. Expect long, bright days with 198 hours in May and darker periods with just 67 hours in January. The total annual amount of sun is 1602 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Iiyama. While May receives considerable daily sunshine with up to 6.6 hours, January marks the darkest time of the year, where sunshine is scarce with only 2.2 hours of sunlight per day.

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

Iiyama enjoys an average of 1602 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.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

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

Other climate information

July, Iiyama’s wettest month, receives 197 mm of rainfall and has a maximum daytime temperature of 28°C. During the driest month April you can expect a temperature of 14°C.

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