ここはうだるように暑い。

here (place physically close to the speaker, place pointed by the speaker while explaining); this place; these last (followed by a duration noun and a past sentence: time period before the present time of the speaker); these next ... (followed by a duration noun and a non past sentence: time period after the present time of the speaker); the next ...

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

to boil; to seethe; to be oppressed by heat

in order to (e.g. meet goal); so that; take care (so as); hoping or wishing for something

hot (weather, etc.); warm