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Typhoon Kajiki to bring flooding and destructive winds to Southeast Asia

Typhoon Kajiki is starting to bring flooding rainfall, destructive winds and large waves to parts of Southeast Asia.

Kajiki is the 23rd tropical depression in the Pacific region in 2025, and the 14th to develop into at least a tropical storm this season. As of 10am local time on Sunday, August 24, 2025, Kajiki was located 180 nautical miles southeast of Hanoi, and moving west at about 20 km/h.

With optimally warm sea surface temperatures of 30 degrees, abundant moisture to keep it fuelled and no significant wind events to tear it down, Kajiki has been able to develop into a full-scale Typhoon. At its current speed and trajectory, Kajiki is expected to reach the shores of Vietnam on Monday afternoon.

Forecast rainfall associated with this system as well as its maximum winds are expected over the waters of the South China Sea as well as Vietnam’s northern coast before landfall. Sustained winds up to 150km/h are expected, gusting up to 185km/h, whilst accumulated rainfall from now to the system’s landfall during Monday afternoon or early evening could reach 400mm offshore and up to 350mm in Vietnam and eastern Laos.

Image: Forecast accumulated rainfall from now to Tuesday, August 26, evening and overlaid typhoon forecast track, as seen on the DTN Stormtracker dashboard.

Image: 10m wind gusts forecast at 1pm on Monday, August 25, 2025. 

While the system looks to breakdown quickly after it makes landfall, heavy rainfall associated with its remnants will persist over Southeast Asia till mid-next week. The rest of the moisture is swept up into the Indian Monsoon, adding to the heavy rainfall and storms over the region with a monsoon burst.

How DTN APAC supports businesses through typhoons

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Providing rapid-update forecast information, we alert you to any low-pressure system gaining power within your region and, unlike other providers, can track its development out to 7 days. This gives you the time to prepare and safeguard your staff, sites and assets.

You will have the most precise weather intelligence charting rainfall, wind speeds and potential storm surges to help you make critical decisions quickly. Whether it’s adjusting key work schedules, protecting your staff or securing your site, we have the alerting capability to keep you steps ahead of the storm.

As the climate delivers increasingly severe weather events, their potential to impact your business operations grows.

Whether it’s preparing for the coming season’s tropical storm potential, or rapid-response forecasting with a typhoon approaching, or simply ensuring your operations team is equipped to confidently make decisions ahead of severe weather, our weather Risk Communicators are here for you.

Our weather risk communicators deliver short- to long-term guidance from:

  • hourly-event weather monitoring (alerting you of impending destructive winds and heavy rain ahead of a tropical cyclone).
  • week to month operational planning based on likely timing of increased monsoonal rain or periods of reduced cyclone activity.
  • seasonal long term planning based on climate drivers and the likely trends across the coming months.

We deliver clear and comprehensive weather data, personalised risk assessments and briefings to you and your team, so that your critical decisions can be made with confidence.

We are available 365 days a year, so you always have the timely guidance you require, especially when severe conditions hit.

You have our insights to rely on to see you through complex situations, minimising potential loss of profit and maximising the safety of your staff and assets.

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