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Cold Moon to Shine Brightest on December 4, 2025

12/1/2025

50 11 Full Breakdown

Summary

Story summary

The Cold Moon will peak at 6:14 PM EST on December 4, 2025, 14% larger and 30% brighter.
The best viewing times are during moonrise at 3:44 PM EST and just before sunset.
This supermoon coincides with high tides around 12 feet in Boston, with no significant coastal flooding.
Next year will feature three supermoons, including the Wolf Moon on January 3, 2026.
The Geminid meteor shower peaks on December 13–14, 2025.

History

Historical Context

The supermoon phenomenon, notably observed in 2025, connects to the historic Apollo 11 mission in 1969, which captivated over 600 million viewers during humanity's first lunar landing. Supermoons, occurring when the Moon is closest to Earth, can appear 30% brighter. The upcoming Cold Moon will be 14% larger, continuing the public's fascination with lunar events and their impact on tides and natural phenomena.

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Story summary

The Cold Moon will peak at 6:14 PM EST on December 4, 2025, 14% larger and 30% brighter.
The best viewing times are during moonrise at 3:44 PM EST and just before sunset.
This supermoon coincides with high tides around 12 feet in Boston, with no significant coastal flooding.
Next year will feature three supermoons, including the Wolf Moon on January 3, 2026.
The Geminid meteor shower peaks on December 13–14, 2025.

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