Japanese uses different words for “hot” depending on what feels hot. 暑い (atsui) describes hot weather or air, while 熱い (atsui) describes a hot object, food, or liquid. The pronunciation is the same, but the kanji and context tell you which meaning is intended.
暑い (atsui) = hot weather. 熱い (atsui) = hot to the touch or hot food/drink.
暑い (Atsui): Hot Weather
Use 暑い when talking about the temperature of the air, a day, or a season. It is an i-adjective, so the negative form is 暑くない (atsukunai, “not hot”).
Meaning: It is very hot today.
熱い (Atsui): Hot to the Touch
熱い describes something with a high temperature that you can touch or consume, such as tea, soup, or a pan. For hot water, Japanese commonly uses お湯; compare water in Japanese for 水 and お水. Be careful with a hot item: このお茶は熱いです means “This tea is hot.”
Meaning: The soup is hot, so be careful.
Other Uses of Atsui
The adjective 厚い (atsui) means “thick,” as in a thick book or layer. In figurative expressions, 熱い can also describe passionate feelings or an enthusiastic response. The surrounding noun and kanji distinguish these meanings.
| Japanese | Reading | Meaning |
|---|---|---|
| 暑い日 | atsui hi | a hot day |
| 熱いお茶 | atsui ocha | hot tea |
| 厚い本 | atsui hon | a thick book |
Frequently Asked Questions About Hot in Japanese
Tap a question below to see the answer.
Are 暑い and 熱い pronounced differently?
No. Both are read atsui; the kanji and context show whether the heat is weather or an object.
Which word means hot weather?
Use 暑い for hot weather, hot days, or hot air.
Summary: Hot in Japanese
Use 暑い for hot weather and 熱い for hot objects, food, or drink. Both are pronounced atsui.
