2026-04-03 to 04-07: improving with partly cloudy and periods of fog and light rain (see full 7-day forecast).
Forecast available for 3 days.
Expect heavy, prolonged rain Apr 1–2 with likely transit delays and reduced visibility; coastal and mountain travel may be hazardous during JMA advisories. Pack rain gear, allow extra time, and move planned outdoor activities indoors.
Essential resources and local services for day-to-day support.
For medical equipment (CPAP machines, humidifiers, etc.): Distilled water may be difficult to find in some regions. Check major pharmacies and supermarkets. In emergencies, bottled water with low mineral content can be used short term, but consult equipment manufacturer guidelines.
Data sources, coverage notes, and methodology references.
Report derived solely from provided JMA weather bulletins, Tokyo Metropolitan Government releases, News On Japan, and Mainichi items plus the supplied 7-day forecast. No other sources were consulted; transport operator statuses and on-the-ground updates are not included.
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