December 2025 Meteor Showers Calendar

As the year draws to a close, December 2025 invites us to bundle up, step outside, and let the winter night sky unfold its wonders. With crisp air, long nights, and a lineup of cosmic highlights—from dazzling meteor showers to luminous moon phases—this month is a prime time for skywatching. Whether you’re a seasoned astronomer or a curious newcomer, these events offer breathtaking views that remind us of our place in the vast universe. Grab a blanket, a thermos of hot cocoa, and perhaps binoculars for closer looks. Here’s your calendar of notable December 2025 sky events, focusing on the fiery trails of meteor showers and the moon’s enchanting phases, including those ideal for moon gazing.

Meteor Showers: Streaks of Cosmic Fireworks

December hosts two standout meteor showers, perfect for lying back and watching the sky ignite. These natural light shows occur when Earth plows through streams of debris left by comets or asteroids, creating shooting stars that streak across the heavens. The best viewing happens in dark, rural skies away from city lights—aim for after midnight when the radiant (the point from which meteors appear to originate) is highest. No telescope needed; just your eyes and patience.

Geminid Meteor Shower (December 4–17, Peak: Night of December 13–14)

The Geminids are the crown jewel of December’s meteor displays, often hailed as the year’s strongest shower. Expect up to 120 meteors per hour at peak under ideal conditions, with bright, colorful fireballs that move slower than most, allowing you to savor each one. Radiating from the constellation Gemini (near the bright star Castor), these meteors can appear anywhere in the sky.

This year’s conditions are stellar: The moon will be a slim waning crescent, rising around 2 a.m. and barely interfering with pre-dawn viewing. Start watching after sunset on the 13th, but the real magic ramps up after midnight into the morning of the 14th. Bundle up—these late-night sessions can be chilly! Fun fact: Unlike most showers from comets, the Geminids hail from the asteroid 3200 Phaethon, adding a rocky twist to their fiery show.

Ursid Meteor Shower (December 13–24, Peak: Night of December 21–22)

Capping off the month (and the year) are the Ursids, a subtler but enchanting shower originating near the North Star in Ursa Minor. You’ll catch about 5–10 meteors per hour, with occasional bursts that can spike numbers higher—perfect for a cozy solstice vigil. The new moon on December 20 ensures pitch-black skies, making faint meteors pop.

View from the evening of the 21st through dawn on the 22nd, ideally from northern latitudes where the radiant stays visible all night. Though modest compared to the Geminids, the Ursids feel intimate, like a quiet cosmic farewell to 2025. Pro tip: Face north and let your eyes adjust for 20–30 minutes to spot the swift, silver streaks.

Moon Phases: From Shadow to Supermoon Glow

The moon’s monthly cycle is a reliable rhythm in the sky, but December 2025 amps up the drama with a supermoon and phases that frame perfect gazing opportunities. Moon gazing shines brightest during waxing and full phases, when the orb is plump and detailed—revealing craters, maria (dark “seas”), and subtle hues through binoculars or a small telescope. Avoid new moon for lunar views (it’s invisible), but embrace it for deep-space stargazing.

The highlight? That Cold Supermoon on December 4–5, when our satellite is about 14% larger and 30% brighter than average. Time your gaze for moonrise, when atmospheric haze adds a golden hue and optical illusion makes it seem enormous against the horizon. Pair it with a holiday toast—it’s the last full moon of 2025.

Bonus Sky Sights: Planets and Seasonal Magic

While meteors and the moon steal the show, keep an eye on these extras:

• December Solstice (December 21, 15:03 UTC): The shortest day in the Northern Hemisphere kicks off astronomical winter. Sun stands still (solstice means “sun stops”)—a poetic pivot toward longer days.
• Mercury’s Greatest Elongation (December 7): The speedy planet shines brightest in the morning sky, low east before dawn. A challenge for early risers!
• Moon Occultations: On December 10, the moon briefly hides Regulus (in Leo) for northern viewers—a rare “lunar eclipse” of a star.

Tips for Your December Sky Adventure

• Gear Up: Red flashlight to preserve night vision; star-chart app like Stellarium; warm layers for those frosty watches.
• Weather Watch: Clear nights are key—check forecasts and aim for new moon weekends to dodge clouds.
• Ethics: Follow Leave No Trace; minimize light pollution by turning off extras.

December 2025 isn’t just the end of a year—it’s a gateway to awe. Whether chasing Geminid fireballs or tracing moon craters under the supermoon’s glow, these events connect us to the timeless dance of the cosmos. What will you spot first? The stars await. Clear skies!

FAQ: December 2025 Sky Events & Stargazing

What are the best meteor showers in December 2025? The two major meteor showers are the Geminids (peak night of December 13–14, up to 120 meteors/hour) and the Ursids (peak night of December 21–22, 5–10 meteors/hour, occasionally more). The Geminids are widely considered the best and most reliable shower of the entire year.

When is the full moon in December 2025? The full moon (Cold Moon) occurs on December 4, 2025, at 23:14 UTC (6:14 p.m. EST). It is also a supermoon, appearing up to 14% larger and 30% brighter than usual.

Is there a supermoon in December 2025? Yes, the full moon on December 4–5, 2025, is a supermoon because it occurs within hours of lunar perigee (the moon’s closest approach to Earth).

When is the new moon in December 2025? The new moon falls on December 20, 2025, creating completely dark skies perfect for the Ursid meteor shower peak on December 21–22.

When is the December 2025 solstice? The December solstice (winter solstice in the Northern Hemisphere) occurs on December 21, 2025, at 15:03 UTC (10:03 a.m. EST).

Will the moon interfere with the Geminids in 2025? No — the moon will be a thin waning crescent that doesn’t rise until around 2–3 a.m., leaving the prime viewing hours (midnight to dawn on December 13–14) almost completely dark.

Where should I look for the Geminid meteor shower? Meteors radiate from the constellation Gemini (near the bright stars Castor and Pollux), but they can appear anywhere in the sky. Face generally northeast after midnight for the best rates.

Are the Ursids worth watching in 2025? Yes — the new moon on December 20 guarantees moonless skies, making even the fainter Ursid meteors visible on the peak night of December 21–22.

What is the best time to see the Cold Supermoon? Look east around sunset on December 4, 2025. The moon rises huge and golden on the horizon due to the “moon illusion” and will stay bright all night.

Do I need a telescope for December 2025 Meteor Showers? No telescope is required for the Geminids, Ursids, or the supermoon. Naked eyes are best for meteors; binoculars or a small telescope greatly enhance moon crater details during the full and quarter phases.

What are the major meteor showers in 2026? Key 2026 showers include the Quadrantids (peak January 3–4, up to 120 meteors/hour, but full moon interference), Lyrids (April 22–23, 10–20/hour), Eta Aquariids (May 5–6, up to 60/hour, best in Southern Hemisphere), Perseids (August 12–13, 90+/hour under dark skies), and Orionids (October 21–22, 20–25/hour). The Perseids are often the year’s highlight for Northern viewers.