Yahoo TV

STORY: Drivers in Vietnam’s capital Hanoi’s busy streets have to rely on only their headlights to navigate the city - before the lights are finally flipped on – at a delay – to help preserve the power grid under sweltering temperatures.

Weather officials have warned a heatwave could run through the month of June.

Temperatures this week are expected to hit as high as 100 degrees Fahrenheit.

So cities are cutting back on lights. In Hanoi, they’re flipped on 30 minutes later at night and shut off 30 minutes earlier in the morning.

Some lighting along major thoroughfares and in public parks is even cut completely.

The heat and sun are so harsh, people are seeking protection for everything exposed to it.

[Tran Van Hung, resident]

“It’s so harsh and hot outside that people have to wear protective clothing to cool down and not get burnt.”

And state power company EVN says rising demand for air conditioning could strain the grid even further.

[Tran Van Quy, resident]

"It will become more scorching over time. Around 85 degrees Fahrenheit in the past was considered hot, but now we have to adapt to more than 100 degrees Fahrenheit."

This man said he brought his children to a public pool hoping the water could help with the heat, though experts say even that may not be a great idea – that activity in extreme heat can cause dehydration and exhaustion.