Japan Meteorological Agency Declares End of Rainy Season in Shikoku

Official Announcement

The Japan Meteorological Agency (JMA) has officially declared that the rainy season, known as tsuyu, has concluded in the Shikoku region. This announcement follows a comprehensive analysis of atmospheric conditions and weather patterns across the four prefectures that comprise the region: Tokushima, Kagawa, Ehime, and Kochi.

Seasonal Transition

The conclusion of the rainy season signals a shift toward the stable, hot, and humid weather characteristic of a Japanese summer. Meteorological experts noted that the Pacific high-pressure system has strengthened, effectively pushing the seasonal rain front away from the region. Key observations regarding this year's season include:

• A transition to predominantly sunny conditions across the Shikoku area.
• Increased temperatures expected in the coming days.
• A shift in wind patterns consistent with mid-summer climate data.

Safety Precautions

With the end of the rainy season, the JMA and local authorities have issued advisories regarding the onset of intense summer heat. Residents are encouraged to take proactive measures to prevent heatstroke, including staying hydrated, utilizing air conditioning, and limiting strenuous outdoor activities during peak sun hours. Officials stated, 'As we enter the peak of summer, it is critical for the public to monitor local weather updates and prioritize health safety as temperatures climb.'

Regional Impact

The end of the rainy season is a significant milestone for the region, impacting agriculture, tourism, and daily life. While the risk of heavy, prolonged rainfall associated with the tsuyu front has diminished, the agency reminds the public that localized, sudden downpours—often referred to as guerrilla rainstorms—can still occur during the summer months. The agency continues to monitor atmospheric stability to provide timely warnings for any severe weather developments.