Cinematic 8K 7680×4320. Variable mix clouds in weather.Partly cloudy sky of a standard day.Partial cloud cover, also known as cloudiness cloudage amount, refers to the fraction of the sky obscured by clouds when observed from a particular location. This is correlated to the sunshine duration as the least cloudy locales are the sunniest ones while the cloudiest areas sunny places. Air weather simple cloud bare vast extensive shoreless unlimitedness immensity overcast mixed clusters cluster time lapse timelapse blue white background cumulus cottony clump stack transition passage pass passing parts particles particle.