"Bangkok Metropolitan Administration" issues a warning about the "Heat Index" on 21 April 2026, reaching the highest level within the "dangerous" range. It recommends monitoring one's own symptoms and seeking medical help immediately if abnormalities occur.
On 21 April 2026, the Facebook pageof Bangkok Metropolitan Administrationposted a warning about the "Heat Index," stating, "Heat Index warning for Tuesday, 21 April 2026: the Heat Index is at dangerous levels.
For the general public, monitor your symptoms. For at-risk groups, seek medical care promptly if abnormalities appear. You can follow air quality reports at airbkk.com and the AirBKK application."
However, the Heat Index refers to the temperature the body actually feels at that moment (Feel like), depending on the air temperature and relative humidity. It is more suitable for indicating the risk of heat-related effects on the body than just using the maximum temperature value.
Thanks to the Bangkok Metropolitan Administration Facebook page.