Most workers, 86.8%, stop working when they feel heat-related symptoms to avoid getting worse.

In big cities, many workers like drivers, construction workers, and vendors have to take breaks to avoid heat exhaustion when it's over 40 C outside.

Street vendors are the most affected, losing 2.9 hours of work daily on average.

A vendor is seen resting in the shade in Hanoi, showing how heat affects them.

The weather is affecting vulnerable people.

The heat affects workers more in the north, with 45.3% in Hanoi and 18.1% in Ho Chi Minh City having to cut their hours.

The heat costs workers money, with 66.2% having to pay for things to adapt and 46.4% losing income.

A motorbike taxi driver said he spends VND100,000 daily on water to stay hydrated while driving in the heat.

A vendor noted it feels hotter each year, with less trees and more concrete making it uncomfortable.

Direct sun exposure is a daily risk for workers, with one driver sharing his experience of getting burned.

For those doing heavy labor, the risks are even higher, with a construction worker sharing a story of a colleague getting sunstroke.

Delivery workers are seen waiting in the shade for customers in Ho Chi Minh City.

There are gaps in social protection for these workers.

The study found that many workers, over 41%, have never received any assistance, highlighting gaps in the social safety net.

Experts recommend creating public cooling centers and accessible water stations to support outdoor workers.

Researchers suggest funding these initiatives through partnerships and developing community-supported cooling centers.

The report calls for stronger heat-wave warning systems and expanding social protection to cover informal workers.