Tropical Storm Dujuan is forecast to pass east of the Tokyo metropolitan area early on Monday 22 September, bringing heavy rainfall and strong winds to the Kanto region during Japan’s Silver Week holiday run (19–23 September). ANA has issued warnings of potential disruptions at Haneda, Narita, and Hachijojima airports.
Flight Impact at Haneda and Narita
As of 19 September, Dujuan has a central pressure of around 975 hPa with maximum sustained winds near 108 km/h and gusts of up to 162 km/h. The track takes the system east of central Tokyo, but the outer bands are wide enough to affect both Haneda and Narita throughout Sunday 21 and into Monday morning.
ANA is flagging Haneda, Narita, and Hachijojima as airports likely to see delays or cancellations and is offering fee-free rebooking for flights in the affected window. JAL has issued similar advisories. Check your booking directly with your carrier before travelling to the airport.
Parts of the Kanto Plain could receive more than 200 mm of rain. The risk is elevated because the region has already had two weeks of above-normal precipitation, raising landslide and flooding concerns on approach routes to both airports.
Shinkansen, Ferries, and Ground Transport
Beyond flights, the storm will likely affect ground transport across the Tokyo region. JR East typically suspends or speed-restricts Shinkansen services when wind thresholds are crossed on the Tokaido and Joetsu lines. Ferry services between the mainland and the Izu island chain are expected to be suspended from Saturday.
Silver Week Context
Silver Week 2026 links four public holidays across 19–23 September, making it one of the busiest domestic travel periods of the year. Shinkansen and domestic flights have been heavily booked since early August. If your flight is cancelled, airlines must offer rebooking or a full refund - see our guide to flight delay compensation in Japan. Travellers who can rearrange their plans can compare flights to Japan for alternative connections.
What to Do
- Check your flight status from the evening of Saturday 20 September.
- Arrive at the airport early on Sunday 21 - delays could compound even for departing flights.
- Monitor JMA forecasts at jma.go.jp for the latest track updates.
If your flight was cancelled or significantly delayed as a result of this disruption, you may be eligible for compensation. Compensair handles the claims process at no upfront cost - you only pay a percentage if they succeed. It takes a few minutes to check whether your disrupted flight qualifies.
The disruption window is focused on the eastern Kanto and Izu areas through Monday morning. Conditions elsewhere in Japan are expected to remain unaffected.