Today's weather is cloudy (Sokcho=Yonhap News) Reporter Ryu Ho-jun = On the 13th, Yeongrangho Lake and Seoraksan Mountain in Sokcho, Gangwon Province, were covered by clouds. 2026.3.13 ryu@yna.co.kr

The first day of June, a Monday, will be generally cloudy with continued heat.

Most areas nationwide are expected to experience daytime temperatures exceeding 30 degrees Celsius.

In particular, the perceived temperature in parts of the eastern coast of Gangwon Province, the coast of Jeonnam, and the Gyeongsang region will exceed 31 degrees Celsius, so caution against heat-related illnesses is advised.

Rain is expected to begin in Jeju from tomorrow morning.

The expected rainfall is 30-80 mm over the two days, June 1st and 2nd.

From nighttime, some areas may experience heavy rain of 20-30 mm per hour.

From the afternoon, there may be gusts with thunder and lightning in the waters south of Jeju Island and the far offshore waters of the eastern South Sea. Therefore, caution should be exercised to prevent accidents during navigation or fishing.

The morning low will be between 16-22 degrees Celsius, and the afternoon high will be between 28-32 degrees Celsius, which is higher than the average for this time of year.

The UV index is expected to be at a 'very high' level in most parts of the country from around 9 AM to 3 PM.

Wave heights in the front seas of the East Sea and South Sea will be 0.5-1.5 meters, and in the front seas of the West Sea, 0.5-0.5 meters.

The wave heights in the far offshore waters (waters within approximately 200 km of the coastline) are expected to be 0.5-2.0 meters in the East Sea, 0.5-1.5 meters in the West Sea, and 0.5-3.0 meters in the South Sea.

Here is the weather forecast by region for June 1st.

[Morning, Afternoon] (Low-High Temperature)

▲ Seoul: [Mostly Cloudy, Clear] (18~29) <20, 0>

▲ Incheon: [Mostly Cloudy, Clear] (17~28) <20, 0>

▲ Suwon: [Mostly Cloudy, Clear] (17~28) <20, 10>

▲ Chuncheon: [Mostly Cloudy, Clear] (16~29) <20, 0>

▲ Gangneung: [Mostly Cloudy, Clear] (22~32) <20, 0>

▲ Cheongju: [Mostly Cloudy, Mostly Cloudy] (18~30) <20, 20>

▲ Daejeon: [Cloudy, Clear] (17~30) <30, 10>

▲ Sejong: [Cloudy, Clear] (17~30) <30, 10>

▲ Jeonju: [Mostly Cloudy, Clear] (17~30) <20, 0>

▲ Gwangju: [Mostly Cloudy, Clear] (17~30) <20, 10>

▲ Daegu: [Mostly Cloudy, Clear] (17~32) <20, 10>

▲ Busan: [Mostly Cloudy, Mostly Cloudy] (19~28) <20, 20>

▲ Ulsan: [Mostly Cloudy, Mostly Cloudy] (17~29) <20, 20>

▲ Changwon: [Mostly Cloudy, Mostly Cloudy] (18~29) <20, 20>

▲ Jeju: [Mostly Cloudy, Cloudy with Rain] (19~27) <20, 70>

※ This article was produced using artificial intelligence (AI) technology. A reporter completed the final article based on a draft written by AI and data from the Korea Meteorological Administration, and it has undergone editorial review. (Yonhap News)

The original data for this article, the weather forecast from the Korea Meteorological Administration, can also be found on their website (https://www.weather.go.kr).