The full cold moon rises on Thursday, Dec. 4. This full moon also marks the final supermoon of 2025.

Across Northern California, the skies may allow us the chance to see it on Thursday. If heavy fog doesn't set up in the Valley, then viewing should be mostly clear.

(Video above: Northern California forecast for Dec. 3.)

This will be the third supermoon this year. Previous supermoons occurred in October and November.

A supermoon is when the moon reaches perigee. This means it's closest to the Earth. It gives the appearance of shining bigger and brighter. Sometimes it can look 14% bigger and 30% brighter on the horizon.

In Northern California, the moon officially peaks at 3:14 p.m. on Thursday. However, it will remain nearly illuminated to its peak into Thursday evening.

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