Free from clouds or mist, for example
The sky is usually cloudless or only partly cloudy.
It was a cloudless, northern, summer night.
A few showers are all that fall from the almost invariably cloudless sky above the Transcaspian steppes.
Apart from these the two seasons are sometimes broken by cloudless skies in winter, and a drizzling mist, called the gariia, in summer.
The sky is continuously cloudless from the beginning of May till about the end of October; during the summer months the nights as a rule are dewy, except in the desert.