Onna Sunshine Hours by Month

To truly understand a climate, we must look at its sunshine. This page shows the total number of hours of direct sunlight per month and the average hours per day in Onna, Okinawa islands, Japan. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Seasonal sunshine in Onna varies. It peaks at 240 hours in July and drops to 88 hours in February. The total annual amount of sun is 1790 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Onna. While July receives considerable daily sunshine with up to 8.0 hours, February marks the darkest time of the year, where sunshine is scarce with only 2.9 hours of sunlight per day.

Onna enjoys an average of 1790 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, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

June, Onna’s wettest month, receives 189 mm (7.4 in) of rainfall and has a maximum daytime temperature of 28°C (82°F). During the driest month November you can expect a temperature of 25°C (77°F).

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