Winter Solstice 2025 Dates Usa. The nature goes to sleep. The solstice is the time of year when the sun's rays hit the earth at the steepest angle.

Seasons divide the year into four distinct periods of time named spring, summer, autumn/fall, and winter. In the northern hemisphere, it occurs when the sun is directly over the tropic of capricorn, which is located at 23.5°.