Where to See the Cold Moon in Wyoming on December 4th
As the year winds down and winter tightens its grip, the night sky over Wyoming promises a spectacular finale. On December 4, the full moon will rise as the Cold Moon — a supermoon that marks the final major lunar event of the year. Get ready to witness something special: this December cold moon in Wyoming will appear larger, brighter, and more majestic than most full moons.
What Is the Cold Moon (and Why a Supermoon)?
The “Cold Moon” is the traditional name for the full moon that occurs in December — a month when winter’s chill takes hold and nights grow long.
When this full moon happens near the moon’s closest approach to Earth (perigee), we call it a supermoon. In 2025, this Cold Moon is indeed a supermoon, the third in a row (following October’s Harvest Moon and November’s Beaver Moon).
Why the Cold Moon in Wyoming Is Something to Watch
Because it’s a supermoon, the Cold Moon will be among the largest and brightest full moons of the year. If you’re in a dark location, it will feel like the moon is bringing its own spotlight. According to NASA, while the actual size increase isn’t dramatic, the brightness and perceptual impact are enough to make it memorable.
Combine that with Wyoming’s clean air and minimal light pollution, and you’ve got a front-row seat.
When to Watch the Cold Moon in Wyoming
- Date: Thursday, December 4, 2025
- Peak full moon moment: ~23:14 UTC / ~4:14 p.m. MST (varies by location)
- Best time to view: Around moonrise (just after sunset) and early evening, when the moon appears low on the horizon and looks its largest.
- Why this timing matters: As the moon rises, atmospheric effects and horizon foregrounds (mountains, trees) make it appear even grander.
Best Places in Wyoming to See the Cold Moon
Wyoming is tailor-made for night-sky magic. Here are prime spots for catching the Cold Moon:
- Grand Teton National Park – With sweeping horizons and dark skies, this park gives you a silhouette rise that’ll take your breath away.
- Jackson Hole / Teton Valley – Perfect for those staying in or near town who want stellar views without a long drive.
- High plains & open ranges east of the Tetons – The fewer the trees and light pollution, the more spectacular the moonrise.
- Yellowstone National Park (northern range or any open zone) – A little drive equals huge sky; combine the moonrise with a winter wildlife stroll.
- Also check out our guided stargazing tours – we’ll help you get to a place that’s perfect for seeing this incredible moon!
Viewing Tips for the Cold Moon
- Check the weather forecast – Clear, crisp skies are your moonrise partner.
- Get a clear, east-facing horizon – The moon will rise in the east; mountains or foreground features help.
- Bring a camera or telephoto lens – Supermoons look great in silhouette, and the Cold Moon’s glow is perfect for framing.
- Layer up for cold weather – December nights in Wyoming get chilly fast. A blanket and hot cocoa are wise.
- Arrive before moonrise – The biggest “wow” moment often happens when the moon just emerges from the horizon.
Find the Best Family Activities in Jackson
Join us at Wyoming Stargazing for unforgettable guided moonrise events, telescopic views, and winter night-sky experiences. Whether it’s the Cold Moon in Wyoming or the next meteor shower, we’ll help you make the most of your cosmic nights.
Explore our stargazing tour options for those visiting or exploring their home of Jackson.
English 
Spanish