December Full Moon 2025: Cold Moon Supermoon Peaks Tonight – Times, Pleiades Occultation, Astrology & Viewing Guide
The final full Moon of 2025, a supermoon known as the Cold Moon, reaches peak brightness at 23:14 UTC on December 4. Astronomers say it will be the highest full Moon in the Northern Hemisphere until 2042. The Moon will appear up to 8% larger and 16% brighter than average due to its close approach to Earth. Skywatchers also observed a rare lunar occultation of the Pleiades star cluster the previous night.