Bangkok’s heat warning stays in effect

Bangkok’s heat index has repeatedly reached the danger range of 42-51.9°C this month and the Bangkok Metropolitan Administration is still warning residents and visitors to watch for signs of heat illness. Actual temperatures have been hovering around 38-40°C, but high humidity is pushing the feels-like temperature much higher.

The city’s alert scale runs from watch at 27-32.9°C to extreme danger above 52°C. Officials say symptoms such as fatigue, dizziness, nausea and fainting should be treated as warning signs, with medical care needed if they appear.

Why nomads and expats are feeling it most

Expats, digital nomads, tourists and outdoor workers face the biggest disruption between 11 a.m. and 3 p.m., when heat exposure is most intense. The risk is higher for young children, older adults, pregnant people and anyone with chronic conditions, especially if they’re still adjusting to Bangkok’s climate.

Cooling centers and public relief spots are getting heavy use. Bangkok reported 59,000 visits to cooling centers in two weeks in early April, a sign that many people are already changing routines to cope with the heat.

What to do before heading out

The BMA says to drink water often, rest in shade and avoid long stretches outside during peak hours. Free support is available through 313 cooling centers, 272 heat relief points and more than 2,800 water stations across the city.

Travelers can check real-time alerts in the AirBKK app or at airbkk.com and emergencies can be reported by calling 1669. The Thai Meteorological Department says hot weather should continue into late April, with the broader heatwave expected to last until mid-May, so plan around it now. For more regional coverage, see our visa updates and read our full Thailand guide for the complete picture.