STATEWIDE — Skywatchers across much of the United States will have the chance to see the final full moon of 2025 Thursday evening, a Cold Supermoon that will appear larger and brighter than any other moon this year.
The moon reaches peak fullness at 6:15 p.m. EST, marking the third consecutive supermoon in a rare sequence of four. Supermoons occur when the moon is within 90% of perigee, the closest point in its orbit to Earth, making it appear up to 14% larger and 30% brighter than the faintest moons of the year, according to NASA.
December’s full moon, traditionally known by Native American tribes as the Cold Moon due to frigid winter temperatures, will be the second-closest full moon of 2025. For the most dramatic view, experts suggest observing near moonrise and from a location with minimal light pollution.
The moonrise will vary by location, but observers are encouraged to check local times for the optimal experience. Weather conditions will also play a role. According to Weather.com meteorologist Caitlin Kaiser, much of the country from the Southwest to the Northeast will have the best chance to see the supermoon in its full glory, while thick clouds are likely to obscure views in the Northwest, Northern Plains and Southeast. Temperatures in many areas are expected to fall below 40 degrees Fahrenheit, so bundling up is advised.
The Cold Supermoon is the last in a trio of supermoons in the latter half of 2025, following October and November’s full moons, and is part of a natural clustering that occasionally occurs when the moon swings closer to Earth.
For skywatchers, the combination of brightness, size and seasonal chill offers a memorable opportunity to witness one of the year’s most striking lunar events.
Tonight in Mississippi, the Cold Supermoon will be visible right after sunset. It will remain visible for several days afterward.
