

Heute ist es wieder total schwül.
[ˈhɔɪ̯tə ˈɪst ˈɛs ˈviːdɐ toˈtaːl ˈʃvyːl.]
It's really muggy again today.
Gestern war es noch schwüler als heute.
[ˈɡɛstɐn ˈvaːɐ̯ ˈɛs ˈnɔx ˈʃvyːlɐ ˈals ˈhɔɪ̯tə.]
Yesterday it was even muggier than today.
Bei schwülem Wetter bekomme ich oft Kopfschmerzen.
[ˈbaɪ̯ ˈʃvyːləm ˈvɛtɐ bəˈkɔmə ˈɪç ˈɔft ˈkɔpfˌʃmɛrtsn̩.]
I often get headaches when the weather is muggy.
"schwül" is in the lesson "Hot weather" (Level 15), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.