Yukata
noun
The bathe clothes are clothes you wear to and from the bath. They're your yukata. 浴衣 originated as robes worn in a steam bath (that explains the kanji), but these days people mostly wear them at summer festivals or traditional Japanese inns. Be careful not to mix up 浴衣 with 着物, which are much more formal and elaborate!
ゆかた
The reading is totally an exception. The reading comes from the meaning, though. Yukata = ゆかた.
花火大会には浴衣で行く予定です。
I plan to wear a yukata to the fireworks display.
あの旅館では浴衣がレンタルできます。
Yukata can be rented at that ryokan.
え、カナちゃんって自分で浴衣が着れるの？
Wait, Kana-chan, you can put on a yukata by yourself?
彼女は自分の古い考え方にしがみついて、毎晩パジャマの代わりに浴衣を着て過ごした。
She clung to her old ways of thinking and wore a yukata instead of pajamas every night.