Seongnam 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 Seongnam, Gyeonggi-do, South Korea. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

Sunshine in Seongnam varies greatly throughout the year. The sunniest month, May, reaches an impressive 225 hours, while July, the darkest month, offers only 124 hours. The total annual amount of sun is 2148 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 7.5 hours of sunshine daily. In contrast, the city experiences much darker days in July, with only 4.1 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 59% of the time during the day in October, the highest percentage of any month. July has the lowest percentage at 27%.

Seongnam enjoys an average of 2148 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, 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.

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

July, Seongnam’s wettest month, receives 265 mm (10 in) of rainfall and has a maximum daytime temperature of 30°C (86°F). During the driest month January you can expect a temperature of 3°C (37°F).

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