Nagasaki Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Nagasaki, Nagasaki, Japan. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Nagasaki. Expect long, bright days with 209 hours in August and darker periods with just 104 hours in January. The total annual amount of sun is 1876 hours.

Daily hours of sunshine

In Nagasaki, summer days are longer and more sunny, with daily sunshine hours peaking at 7.0 hours in August. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 3.5 hours per day.

Average percent of sunshine

On average the sun shines 54% of the time during the day in August, the highest percentage of any month. January has the lowest percentage at 32%.

Nagasaki enjoys an average of 1876 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

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

June, Nagasaki’s wettest month, receives 188 mm (7.4 in) of rainfall and has a maximum daytime temperature of 25°C (77°F). During the driest month January you can expect a temperature of 12°C (54°F).

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