The Hong Kong Observatory issued a Very Hot Weather Warning, according to a government notice published on 28 September 2026. The notice urged television and radio announcers to broadcast the warning promptly.

To help prevent heat stroke, the notice advised avoiding prolonged activities outdoors. People working or active outside were told to wear a wide-brimmed hat and light-coloured, loose-fitting clothing, and to stay in shaded areas as much as possible. It also recommended drinking plenty of water and avoiding beverages containing caffeine or alcohol, and consulting a doctor immediately if feeling unwell.

The notice did not state how long the warning was expected to remain in force.