相そう対たい湿しつ度ど

noun

relative humidity

Technical term used in meteorology, HVAC, and science. Refers to the amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature.

• 今日きょうの相そう対たい湿しつ度どは80パーセントです。

  Today's relative humidity is 80 percent.

• 相そう対たい湿しつ度どが高たかいと、汗あせが蒸じょう発はつしにくくなる。

  When the relative humidity is high, sweat does not evaporate easily.