天气凉快 meaning in English

to be cool

It gets nice and cool after a spatter of rain ..
下了一阵雨，天气凉快多了。
And if you will stay another month complete , it will be in my power to take one of you as far as london , for i am going there early in june , for a week ; and as dawson does not object to the barouche box , there will be very good room for one of you - and indeed , if the weather should happen to be cool , i should not object to taking you both , as you are neither of you large .
我六月初要去伦敦待一个星期要是你能再住满一个月，我就可以把你们两个人当中顺便带一个人去，涛生既不反对驾四轮马车，那自然可以宽宽敞敞地带上你们一个要是天气凉快，我当然不妨把你们俩个都带去，好在你们个儿都不大。 ”