Last supermoon of 2025: When to see the 'Cold Moon'
What's the story
The last supermoon of the year, also known as the Cold Moon, will grace our night skies in December. The astronomical event occurs when a full or new moon reaches its perigee—the closest point in its elliptical orbit to Earth—about 363,000km away. This is why it appears larger and brighter than usual. The upcoming Cold Moon will be the second brightest and second biggest of the year, according to NASA.
Viewing tips
Cold Moon: A celestial spectacle to behold
The Cold Moon will be fully illuminated on December 5, appearing up to 14% larger in diameter and 30% brighter than the faintest Moon of the year. For optimal viewing, it's best to catch a glimpse of this supermoon just after moonrise around dusk. This is when our natural satellite appears largest due to a phenomenon known as "Moon illusion." The event will also bring higher-than-usual tides as the Moon approaches Earth closely.
Cultural significance
Cold Moon: A blend of science and tradition
The Cold Moon, which occurs in winter in the Northern Hemisphere, has many traditional names. These include Long Nights Moon (because it rises near the longest night of the year, the winter solstice), Frost Exploding Trees Moon, Hoar Frost Moon, and Snow Moon. Ancient Europeans celebrated Yuletide festival around this time to mark Sun's return. This is why it's also called "Moon before Yule."