They are wearing hats, sunglasses and light clothes because it is hot.

因为天气热他们戴帽子，太阳镜和穿着浅色衣服。

youdao

If it gets really hot, I bring a lot of water and wear light clothes and I'm good to go.

如果天气真的很热，我就带很多水，穿轻巧的衣服，是的，我准备好了。

youdao

Yes, it is. I'm only going to pack light clothes. Kunming is also beautiful, and it has lots of wonderful sights.

是的，我只准备带些薄衣服。昆明也很美丽，它有很多美丽的景点。

youdao

Wear loose, lightweight and light colored clothes.

VOA: special.2011.08.09

Wear loose,lightweight and light colored clothes.

VOA: special.2010.07.27

So we projected our fantasy to the clothes, and now all I do is light, light clothes because it's the one thing I don't have.

WSJ: Alber Elbaz | Soapbox

Thus your body and objects that are underneath your clothes will have a somewhat higher temperature than the surface of your clothes and will emit light of a different IR wavelength than the surface of your clothes does.

FORBES: Hack Your iPad To See Through Clothes? An April Fool's Prank With A Real Physics Lesson

It is also a time for the community to light candles, dress in their best clothes, invite friends for parties and eat traditional foods, including Indian sweets such as barfi, a milk-based candy, and ghoogra, a pastry made of cereal and sugar.

BBC: Thousands celebrate Diwali