On July 4, 2023, a high pressure system covered the area with intense heat, and just after 2:00 p.m., the maximum temperature reached 35.0 degrees Celsius in Nakagyo Ward, Kyoto City, making it the first extremely hot day of the year.

People walking along Shijo-dori Street with parasols in the first heat wave of the year in Kyoto (afternoon of July 4, Shimogyo Ward, Kyoto City)

According to the Japan Meteorological Agency, the maximum temperature exceeded 30 degrees Celsius in Nantan City, Fukuchiyama City, and Kyotanabe City in Kyoto Prefecture. In Shiga Prefecture, the maximum temperature exceeded 30 degrees in Otsu, Koka, and Higashiomi.