Key Facts
• August 1: Heatwave continues, Sakata records another scorching day.
• July: Yamagata City experienced 14 consecutive days above 35°C, a record high.
• Two high-pressure systems (Pacific and Tibetan) intensified the heat.
• Average July temperatures: Yamagata 34.6°C, Yonezawa 33.8°C, Shinjo 32.7°C, Sakata 32.3°C.
• Yonezawa broke records for highest temperatures, ranking 1st to 7th historically.
• July rainfall: Yamagata and Shinjo recorded 8mm (4% of average), Sakata 3mm (1%).
• Weather forecast: Rain and clouds expected next week, easing heat and drought.
Summary
July 2025 saw unprecedented heat across Yamagata Prefecture, with record-breaking temperatures and minimal rainfall. Yamagata City endured 14 consecutive days above 35°C, while Yonezawa shattered historical temperature records. Two high-pressure systems, the Pacific and Tibetan, contributed to the extreme heat. Rainfall was critically low, with Sakata receiving only 3mm, the lowest on record. Weather forecasts suggest relief next week, with increased rain and cloud cover expected to mitigate the heat and drought.
