The last full moon of 2025 will rise on Dec. 4, bringing with it brighter skies and a second round of king tides to the Oregon Coast.

December's full moon is known as the Cold Moon and is also the last supermoon of 2025. A supermoon occurs when the moon happens to be full at its closest point to the Earth during its orbit.

"The path the Moon takes as it orbits our planet is not quite a perfect circle," according to the NASA website . "Sometimes the Moon is a little closer to Earth and appears slightly larger than average."

As the moon orbits the Earth, there are a few times a year when its closest point coincides with the full moon, creating a supermoon.

On Dec. 4, the moon will also reach what's known as a perigee, or its closest point to Earth of 221,808 miles. The scientific term

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