Typhoon Dujuan is bearing down on Japan with enough force to disrupt air travel, knock out power, and shut down some of the country’s most high-profile public events — and meteorologists warn the worst may still be ahead.
As of Monday, September 21, 2026, the storm was tracking approximately 110 kilometres from Hachijojima, one of Tokyo’s most distant outlying islands, with sustained wind speeds of 144 kilometres per hour. The Japan Meteorological Agency (JMA) has issued urgent warnings, stating that rainfall accumulation through Tuesday could surpass the average total monthly precipitation for September — a threshold that, if crossed, would constitute a record-breaking weather event for the region.
A Storm’s Arrival Grounds Japan’s Aviation Network
The most immediate and measurable disruption from Typhoon Dujuan has been felt across Japan’s aviation sector. At least 275 flights have been cancelled in total, with Japan Airlines accounting for 120 domestic cancellations and 15 international routes, while All Nippon Airways suspended 140 domestic flights.
The scale of the cancellations reflects how seriously operators are treating the storm’s projected track. Railway operators in Tokyo and surrounding regions have also suspended services on select lines, compounding travel difficulties for commuters and visitors alike. The combined effect on ground and air transport signals a broad operational shutdown across the Greater Tokyo region as the typhoon approaches.
Power Outages and Landslide Warnings Strike the Tokyo Periphery
Beyond travel disruption, Typhoon Dujuan has already begun extracting a physical toll on communities near the capital. More than 4,000 households in Chiba Prefecture — which borders Tokyo directly — lost power on Monday as the storm’s outer bands pushed through the area.
The JMA and local government authorities have issued warnings urging residents to remain alert to the dual threats of heavy rainfall and potential landslides. Chiba’s geography, which includes elevated terrain in its inland zones, makes it particularly susceptible to slope instability during periods of intense precipitation. Authorities have not yet reported casualties, but the advisory posture from official agencies reflects a heightened concern about what the typhoon’s core arrival could bring.
Tokyo Game Show and Major Public Events Called Off on Final Day
One of the more striking indicators of the storm’s reach was the cancellation of Tokyo Game Show’s final day. The annual event — regarded as one of the world’s largest video game trade fairs — had opened on Thursday and was scheduled to conclude on Monday. Organisers called off the closing day as conditions deteriorated, cutting short what is typically a heavily attended public session.
The cancellations extended beyond the gaming industry. A major outdoor music festival and a professional baseball match, both scheduled to take place in Chiba, were also scrapped. The cluster of high-profile event cancellations in a single day underscores how typhoon preparedness in Japan increasingly intersects with large-scale public gatherings.
JMA Warns of Potentially Historic Rainfall Before Typhoon Landfall
The Japan Meteorological Agency issued its warning on Sunday — before the typhoon had even made its closest approach — noting that rain and wind intensity were expected to escalate in advance of the storm’s arrival. The agency’s statement was direct: total rainfall through Tuesday could exceed September’s average monthly figure, with the potential for record-breaking accumulation.
This pre-landfall escalation is a pattern consistent with mature typhoons that draw significant moisture as they move through warm Pacific waters. The JMA’s framing of the rainfall risk as potentially record-setting places Typhoon Dujuan among the more serious weather events to affect the Tokyo metropolitan area in recent memory.
What You Need to Know About Typhoon Dujuan
How many flights has Typhoon Dujuan cancelled in Japan? Typhoon Dujuan has forced the cancellation of at least 275 flights in Japan, including 120 domestic and 15 international flights by Japan Airlines and 140 domestic flights by All Nippon Airways.
Where is Typhoon Dujuan located as of September 21, 2026? As of Monday, September 21, 2026, Typhoon Dujuan was approximately 110 kilometres from Hachijojima, one of Tokyo’s farthest outlying islands, with wind speeds of 144 kilometres per hour.
What rainfall warning has the JMA issued for Typhoon Dujuan? The Japan Meteorological Agency has warned that total rainfall through Tuesday could exceed the average monthly rainfall for September, potentially resulting in record-breaking precipitation levels across the region.
How many households have lost power due to Typhoon Dujuan? More than 4,000 households in Chiba Prefecture, which borders Tokyo, were without power on Monday as Typhoon Dujuan approached.
Has Tokyo Game Show been affected by Typhoon Dujuan? Yes. Tokyo Game Show, one of the world’s largest video game trade fairs, cancelled its final day on Monday due to the approaching typhoon. The event had been running since Thursday.
What other events were cancelled because of Typhoon Dujuan? A major outdoor music festival and a professional baseball match, both scheduled in Chiba, were cancelled on Monday as the typhoon neared the Tokyo metropolitan area.
Are train services running in Tokyo during Typhoon Dujuan? Several railway operators in Tokyo and neighbouring regions have suspended services on select lines due to the typhoon’s impact, adding to the disruption already caused by widespread flight cancellations.