The last full moon of the month is coming up this week, and it's going to be special.

The December full moon, also known as the cold moon, will rise early in the month, on Thursday, Dec. 4, 2025 at 6:14 p.m. according to the Old Farmer's Almanac.

In addition to being the last full moon of 2025, it's also one of the last in a string of supermoons that created awe-inspiring moon rises over the last three months. The January 2026 full moon will also be a supermoon.

How much brighter and bigger is a supermoon?

There isn't a scientific definition of a supermoon, but they appear about 14% bigger that a typical full moon and shine about 30% brighter, according to the Natural History Museum.

The reason is happens is because the moon's orbit of the Earth isn't a perfect circle, which means t

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