The Cold Moon in 2025 occurs on Thursday, 4 December 2025, with the full phase (astronomical peak) around 23:14 GMT.

Quick Scoop: Cold Moon 2025

  • The Cold Moon is the traditional name for the full Moon in December, marking the onset of winter in the Northern Hemisphere.
  • In 2025, it falls on 4 December and is also a supermoon, meaning the Moon appears slightly larger and brighter than average.
  • The Moon will look full for a couple of nights around this date (roughly 3–5 December), even though the exact peak is on the 4th.

Exact Timing Details

  • Astronomically, the Cold Moon reaches full phase on 4 December 2025 at about 23:14 GMT.
  • Many outlets describe it simply as the “full Cold Moon on Thursday, December 4,” the last supermoon of 2025.
  • Local viewing times vary by location, but it will be visible through the evening and much of the night on the 4th in most regions with clear skies.

Why It’s Special in 2025

  • The 2025 Cold Moon is described as the final supermoon of the year and part of a rare run of multiple supermoons in a row.
  • Some astronomy and news outlets note it will appear noticeably bright and slightly larger, making it a good opportunity for skywatchers and night photography.
  • It also symbolically closes out the lunar year, arriving close to the winter season and the end-of-year holidays in many cultures.

TL;DR: The answer to “when is the Cold Moon 2025” is 4 December 2025, peaking around 23:14 GMT, and it will be the last supermoon of that year.

Information gathered from public forums or data available on the internet and portrayed here.