不ふ快かい指し数すう

noun

discomfort index; temperature-humidity index

A meteorological index combining temperature and humidity to express how uncomfortable the weather feels. Often used in weather forecasts.

• 今日きょうの不ふ快かい指し数すうは80を超こえている。

  Today's discomfort index is over 80.

• 不ふ快かい指し数すうが高たかい日ひは熱ねっ中ちゅう症しょうに注ちゅう意いが必ひつ要ようだ。

  On days with a high discomfort index, one must be careful of heatstroke.