Cool Weather Feels Like Spring; Heat Expected Later This Week

Jun 10, 2026

Cool Weather Feels Like Spring; Heat Expected Later This Week
The weather these days feels more like spring than June, with cool temperatures that might make you feel as if the season has turned back.

With cold air at minus 12 degrees Celsius (10 degrees Fahrenheit) hovering about 5km above the Korean Peninsula, daytime temperatures will remain mild tomorrow, June 11.

However, the temperature difference between the ground and the upper atmosphere will exceed 30 degrees Celsius (54 degrees Fahrenheit) during the day, leading to atmospheric instability and the development of sudden, intense rain clouds in some areas.

Due to the nature of these showers, there will be significant variations in rainfall depending on the region.

Expect anywhere from 5mm to 40mm of rain, and please be cautious as some areas may experience thunder, lightning, or even hail.

Next, let’s look at the satellite imagery.

You can see a stationary front stretching from central and southern China to the waters south of Japan, located to the south of the Korean Peninsula.

In contrast, Korea remains under the influence of cold and dry air, with only occasional clouds passing through.

While shower clouds will develop tomorrow, the sky will be mostly clear, leading to high levels of ultraviolet radiation and ozone concentrations during the day.

Temperatures will be similar to today.

Seoul will start at 16°C (61°F) with a daytime high of 26°C (79°F), while Jeonju is expected to reach 25°C (77°F).

As the cold air moves eastward toward the end of the week, the weather will turn hotter, and rain is expected to begin in Jeju Island starting Sunday.

(Weather Caster Nam Yu-jin)
※ Please note: This article was translated by AI and may contain errors.