BANGKOK, THAILAND – Bangkok endured 19 consecutive days of dangerously high heat index levels, while forecast summer storms were expected to bring only temporary relief until 25 April.
19 days of heat index in danger range
The Bangkok Metropolitan Administration (BMA) reported that the capital had recorded dangerous heat index levels on 19 consecutive days since 1 April. Authorities said the index had remained in the “Danger” range of 42 to 51.9°C, indicating a high risk to public health.
What the heat index shows
Unlike the measured air temperature, the heat index described how hot it actually felt. The indicator included humidity, which could significantly increase the strain on the body at high temperatures.
Health warnings and typical symptoms
Officials advised people to avoid spending long periods outdoors, especially during the hot afternoon hours. Warning signs included fatigue, dizziness, skin rashes, muscle cramps and heatstroke, which could signal serious heat-related illness.
Vulnerable groups in focus
Vulnerable groups were urged to seek medical help as soon as they noticed the first signs of illness. Authorities stressed that early action could be crucial in preventing severe consequences from heat illnesses.
Summer storms forecast until 25 April
The Thai Meteorological Department forecast summer storms until 25 April, including thunderstorms and gusty winds in Bangkok. For Upper Thailand, the northeast and the east, the agency also expected periods of strong winds, hail and locally heavy rain.
Bangkok: thunderstorms despite ongoing heat
In Bangkok and surrounding areas, conditions were expected to remain hot while thunderstorms could affect 10 to 30% of the area. Temperatures in the capital could reach up to 39°C, while in the north and northeast they might climb to 42°C.
Brief easing, then renewed intensity
According to the forecast, storms could temporarily weaken on 21 and 22 April. They were then expected to intensify again as a high-pressure system from China moved further south.
Safety advice during storms and at sea
Residents were urged to avoid open areas, large trees and unstable structures during storms. Seafarers were advised to stay on land, as wave heights could rise above two metres.