Particle.news
Download on the App Store

December Solstice Begins Winter in Northern Hemisphere, Summer in Southern

Despite lengthening daylight from today, the coldest weeks typically arrive in January and February due to Earth's thermal lag.

Overview

  • UNAM and NASA placed the solstice at 09:03 in Mexico’s Central Time, while Argentina’s Naval Hydrography Service set it at 15:03 official time.
  • Stonehenge drew thousands for sunrise celebrations, with about 8,500 attendees reported as people marked the year’s shortest day in the north.
  • In Spain, the National Astronomical Observatory noted winter began at 16:03 peninsular time and will last 88 days and 23 hours until March 20, 2026.
  • Observatories highlighted near‑term sky events including the Ursids around December 22, the Quadrantids near January 3, full moons on January 3, February 1 and March 3, and two seasonal eclipses.
  • Meteorologists stressed the difference between astronomical and meteorological seasons, with Spain’s Aemet expecting above‑average temperatures for December–February.