September 13 Weather: Cloudy in Seoul and Gangneung, Sunny in Busan and Jeju

Cloudy forecast for Seoul and Gangneung, 40% chance of precipitation

Seoul is forecast to be cloudy on the 13th, with a daytime high of 23 degrees and a morning low of 18 degrees. The chance of precipitation is 40 percent, humidity is 60 percent, and winds are forecast at 1 meter per second.

Gangneung is also forecast to be cloudy, with a daytime high of 24 degrees and a morning low of 18 degrees. The chance of precipitation is 40 percent, humidity is 66 percent, and winds are forecast at 1 meter per second.

With a 40 percent chance of precipitation forecast for Seoul and Gangneung, carrying an umbrella when going out may be helpful.

Sunny in Busan and Jeju, with daytime highs forecast at 29 and 27 degrees

Busan is forecast to be sunny on the 13th, with a daytime high of 29 degrees and a morning low of 20 degrees. The chance of precipitation is 10 percent, humidity is 52 percent, and winds are forecast at 2 meters per second.

Jeju is forecast to be sunny, with a daytime high of 27 degrees and a morning low of 21 degrees. The chance of precipitation is 10 percent, humidity is 76 percent, and winds are forecast at 3 meters per second.

Jeju's humidity is forecast at 76 percent, higher than Busan's, while winds are expected to be stronger at 3 meters per second than Busan's 2 meters per second.

Air quality and daily-life indices for the 13th

Air quality in Seoul is forecast to be in the “Slightly Poor” category on the 13th, while Busan, Gangneung and Jeju are all forecast to be in the “Good” category.

The clothing index recommends short sleeves for Seoul, Busan and Jeju, and long sleeves for Gangneung. The driving index is listed as “Very Good” for all four regions.

The activity index is listed as “Good” for Seoul, Gangneung and Jeju, and “Average” for Busan. The skin-care index is listed as “Good skin weather” for Seoul and Gangneung, and “Caution: oiliness; sebum management needed” for Busan and Jeju.