Iriomote 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 Iriomote, Iriomote Island, Japan. These averages rely on historical data collected over 30 years, from 1990 to 2020.

Monthly hours of sunshine

If you're visiting Iriomote, timing is key. In July, you can enjoy up to 258 hours of sunshine, while the shorter days of December provide just 70 hours. The total annual amount of sun is 1724 hours.

Daily hours of sunshine

For those who appreciate different seasons, Iriomote serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.6 hours of sunshine daily, and embrace the darker days in December, offering only 2.3 hours of daily sunlight.

Iriomote enjoys an average of 1724 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

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.

Beijing, China, has 2505 hours of sunshine annually, with clear, sunny days in winter.

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

August, Iriomote’s wettest month, receives 142 mm (5.6 in) of rainfall and has a maximum daytime temperature of 30°C (86°F). During the driest month February you can expect a temperature of 22°C (72°F).

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