Clear skies refer to atmospheric conditions where there are few or no clouds, allowing for unobstructed views of the sky. This phenomenon often occurs during high-pressure weather systems, which stabilize the atmosphere and reduce moisture. Clear skies are typically associated with sunny weather, making them ideal for outdoor activities and providing ample sunlight. In addition to enhancing visibility, clear skies can also influence temperature. During the day, the sun's rays warm the ground, while at night, the lack of cloud cover allows heat to escape into the atmosphere, often resulting in cooler nighttime temperatures. Clear skies are also favorable for astronomical observations, as they provide a better view of celestial bodies like stars and planets.