降 雨(こうう)

こうう

noun

rainfall; precipitation

1. rainfall; precipitation

A formal, technical term for rain falling from the sky, used primarily in weather reports, scientific writing, and official communications rather than everyday conversation.

降雨(こうう)量(りょう)が少(すく)ない。

The amount of rainfall is low.

昨夜(さくや)の降雨(こうう)で川(かわ)の水位(すいい)が上(あ)がった。

The river's water level rose due to last night's rainfall.

気象庁(きしょうちょう)は今週末(こんしゅうまつ)にかけて広(ひろ)い範囲(はんい)で降雨(こうう)が続(つづ)くと予報(よほう)している。

The Meteorological Agency is forecasting continued rainfall over a wide area through this weekend.

A formal, technical term for rainfall or precipitation. Combines 降(こう) (to fall, to descend) and 雨(う) (rain).

Usage

Used primarily in weather reports, scientific contexts, and formal writing
In everyday conversation, 雨(あめ)が降(ふ)る (rain falls) is more natural
Often appears as part of compound expressions related to weather measurement

Common collocations

降雨(こうう)量(りょう): amount of rainfall
降雨(こうう)確率(かくりつ): probability of rain
降雨(こうう)予報(よほう): rainfall forecast
集中(しゅうちゅう)降雨(こうう): concentrated rainfall, heavy localized rain
降雨(こうう)日数(にっすう): number of rainy days

Similar words

雨(あめ): rain — the everyday word
降水(こうすい): precipitation — includes rain, snow, sleet, and other forms
豪雨(ごうう): heavy rain, torrential rain — specifically heavy, intense rainfall

Related Words

Compare: 降水(こうすい) (precipitation)

Compare: 豪雨(ごうう) (heavy rain, torrential rain)

Compare: 雨降(あめふ)り (rainfall)

general

Added 2026.4.3 7:11 · Revised 2026.9.2 13:02

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