暑さ|あつさatsusa

1. nounheat (of the weather); hotness
   その暑あつさで気絶きぜつして、気きがついたら救命きゅうめいいかだの中なかにいた。↗

   I fainted from the heat, and when I came to, I was in a life raft.

• Synonym暑気しょきWrittenWritten/formal prose for the heat of summer, as in 「暑気払い」; 「暑さ」 is the more everyday word.
• Related高温こうおんWrittenWritten/formal prose for high temperature, not limited to weather; 「暑さ」 conveys the feeling of hot weather.
• Related熱さあつさNeutralThe heat of objects, as in 「お湯の熱さ」; 「暑さ」 is for hot weather and high air temperature.
• Antonym寒ささむさNeutralColdness; the direct opposite of 「暑さ」.

For hot weather use 「暑さ」; for the heat of objects use 「熱さ」; in written or formal prose use 「暑気」 for summer heat and 「高温」 for high temperature; the opposite is 「寒さ」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 暑あついこと。またその程度ていど。
2. 暑あつい時候じこう。