Japan and South Korea experience record-breaking summer heat, linked to climate change.

Japan and South Korea saw their hottest summers on record in 2025, with Japan's average temperature 2.36°C above normal, marking the third consecutive record-breaking summer. South Korea's average was 25.7°C, its highest since 1973. The extreme heat led to health issues, water shortages, and earlier blooming of cherry blossoms, with experts linking the trends to climate change.