Monitor Japan Meteorological Agency (JMA) alerts for Tokyo and nearby islands and adjust plans if warnings for lightning, strong winds, or landslides are issued.
Avoid outdoor activities on days with thunderstorms or high lightning risk (notably 2026-07-05) and move indoors at first sign of lightning or severe wind.
Carry rain gear and plan extra travel time — expect frequent drizzle across the coming week and a higher chance of storms on 2026-07-05 (slight hail).
Enroll in your government travel-registration system (STEP) and keep itinerary/contact info accessible in case plans change.
Keep a low profile regarding local organized-crime topics and avoid areas of any public court gatherings or demonstrations related to ongoing trials.
