Typhoon Guide for Japan: What Travelers Should Do Before, During & After a Storm

Japan updated its disaster-weather information. Warnings for heavy rain, flood, landslide and storm surge are now organized to correspond more directly with the five alert levels used for evacuation decisions. JMA warning names may include the alert level, making the expected urgency easier to understand.

The key traveler principle is simple: do not wait for the highest level. Alert Level 3 is the stage at which older people and others who need more time should evacuate from hazardous places. Alert Level 4 is an Evacuation Order, and people in dangerous areas should already be evacuating. Alert Level 5 means life-threatening conditions may already be occurring, so waiting for Level 5 is too late.

• Level 1: increase awareness and start checking conditions.
• Level 2: review your evacuation route, hotel location and hazard exposure.
• Level 3: people who need extra time should evacuate hazardous areas.
• Level 4: evacuate dangerous areas when an Evacuation Order is issued.
• Level 5: take the best possible action to protect life immediately.

Typhoons usually provide more planning time than earthquakes. Use that advantage. When forecasts show a realistic chance of major wind or rain affecting your route, move optional travel earlier, postpone risky activities and confirm where you will stay if transport stops.

Do not wait until trains are already suspended or shops are closing. A small amount of early preparation prevents many travel problems.

• Check JMA typhoon information and local warnings several times a day.
• Check your airline, railway, ferry or bus operator before leaving your accommodation.
• Confirm whether your hotel can extend your stay if transport is canceled.
• Charge your phone, power bank and portable Wi-Fi device.
• Buy a modest amount of water, simple food and essential medicine while conditions are still safe.
• Keep passport, money, medication and important documents protected from water.

During the strongest wind or rain, the safest travel plan is usually no travel at all. Stay inside a sturdy building and follow hotel, station, airport or local-government instructions. Strong gusts can turn signs, branches and umbrellas into hazards, while intense rain can quickly flood underpasses and low-lying streets.

If you are already outside when conditions worsen, move to the nearest safe substantial building rather than trying to complete your sightseeing plan or walk a long distance back to your hotel.

• Stay away from large windows when winds are severe.
• Do not use an umbrella in dangerous gusts; staying indoors is safer.
• Avoid construction areas, trees, signs and temporary structures.
• Never enter floodwater on foot or by car.
• Conserve phone battery if power or mobile service becomes unreliable.

Airlines and railways may delay, cancel or suspend service for wind, heavy rain, flooding or safety inspections. Rail operators can slow or stop trains when rainfall or wind exceeds operating thresholds, and planned suspensions may be announced before conditions become severe.

A common traveler mistake is going to a station or airport simply because the original itinerary says to go. Check the operator first. A crowded terminal with no operating service is usually a worse place to wait than a safe hotel.

• Flights: check both the flight and the airport-access route before leaving.
• Shinkansen and local trains: watch for planned suspensions, delays and route-specific notices.
• Buses and taxis: road flooding, wind and traffic can reduce availability.
• Ferries and island routes: expect early cancellations when waves and wind increase.
• If service is canceled, secure accommodation before large numbers of travelers need rooms.

Your phone becomes a critical travel tool during a typhoon. Use it for JMA warnings, airline and railway notices, hotel contact, maps, translation and family communication. JNTO lists the Safety tips app as a source of disaster information for visitors, including strong weather alerts.

For emergencies in Japan, call 119 for fire, ambulance or rescue and 110 for police. JNTO's Japan Visitor Hotline provides 24-hour support for visitors facing accidents, illness, natural disasters or other urgent travel problems.

• Save key pages and phone numbers before conditions deteriorate.
• Keep your hotel address available offline.
• Use official railway and airline pages for operating status.
• Carry a power bank and charging cable.
• Avoid draining battery on unnecessary video or constant social-media checking.

Typhoons can create costs that ordinary itinerary planning does not cover: canceled or delayed transport, additional hotel nights, missed connections, medical treatment or damaged baggage. Whether an insurer pays depends on the policy, the event, purchase timing, exclusions, benefit limits and documentation.

Read coverage before the storm is already affecting your trip. If you need to claim, keep airline or railway notices, hotel invoices, receipts, rebooking records and any official disruption information.

• Check trip-delay and trip-interruption benefits.
• Check cancellation rules and weather-related exclusions.
• Check emergency medical and evacuation coverage.
• Keep receipts and written proof of cancellations or delays.
• Do not assume every weather-related expense is automatically covered.

The end of heavy rain does not mean every route is safe. Fallen trees, debris, flooding, damaged roads and railway inspections can continue to affect travel after the storm center has moved away.

Resume your itinerary only after checking local warnings and the operating status of the exact transport you plan to use. If an area remains closed or evacuation information is still active, wait rather than trying to recover lost sightseeing time.

• Check for continuing flood, landslide and high-wave warnings.
• Confirm train, flight, ferry and road status before departure.
• Avoid fallen trees, damaged structures and standing water.
• Give yourself extra connection time because services may restart gradually.
• Keep receipts for any continuing disruption-related expenses.