水位(すいい)

すいい
noun
water level
1. water level; water height
The height of the surface of water in a river, lake, reservoir, or other body of water. A key measurement in flood management and weather reporting.
川(かわ)の水位(すいい)が上(あ)がっている。
The water level of the river is rising.
大雨(おおあめ)で水位(すいい)が危険(きけん)な水準(すいじゅん)に達(たっ)した。
The water level reached a dangerous level due to heavy rain.
ダムの水位(すいい)が低下(ていか)しているため、取水(しゅすい)制限(せいげん)が出(で)された。
Water intake restrictions were issued because the dam's water level is declining.

Composed of 水(すい) (water) and 位(い) (level, rank). A fundamental term in weather reports and disaster preparedness.

COMMON COLLOCATIONS:

  • 水位(すいい)が上(あ)がる/下(さ)がる: the water level rises/falls
  • 水位(すいい)が上昇(じょうしょう)する: the water level increases (formal)
  • 危険(きけん)水位(すいい): dangerous water level
  • 水位(すいい)計(けい): water level gauge
  • 水位(すいい)を監視(かんし)する: to monitor the water level

USAGE:
Frequently heard in weather reports and disaster alerts, especially during the rainy season (梅雨(つゆ)) and typhoon season. The phrase 危険(きけん)水位(すいい) (dangerous water level) triggers evacuation warnings.

SIMILAR WORDS:

  • 水位(すいい): water level — the actual height of water
  • 推移(すいい): transition, changes over time — a homophone with completely different meaning
  • 水量(すいりょう): water volume — the amount of water, not just its height
  • 潮位(ちょうい): tide level — specifically for ocean tides
general
Added 2026.4.3 1:20
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