Brightest Planets in December 2025: December always brings long nights and clean, cold air, and that makes it a great month for anyone who loves looking up at the sky. Some planets slip away during this time, but others glow even brighter than usual.
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Jupiter to be the Brightest Planets in December 2025
In December 2025, Jupiter becomes the brightest planet you can spot after sunset. It almost looks like a giant shining star. A few hours after the sun goes down, Jupiter rises in the east-northeast part of the sky and climbs higher through the night.
People who enjoy sky watching love Jupiter because it stays very bright and steady. Small telescopes make the sight even cooler because you can see its cloud bands and all four of its big moons. The best time to see Jupiter is early in the month, especially around December 7, when it sits near the moon.
If you want to look for Jupiter, stand somewhere open with a clear line of sight. Then look toward the east-northeast around two or three hours after sunset.
Saturn to stay for Half the Night
Saturn also appears in December, but it does not glow as strongly as Jupiter. You can find it in the southern sky right after sunset, and it stays visible for the first half of the night. Saturn looks soft and golden, so it is not hard to notice.
A telescope makes Saturn even more fun to watch because you can see its rings. In 2025, the rings stay almost edge-on from Earth, making them look very thin. This is a rare sight, and many sky fans will enjoy it.
To see Saturn look south soon after sunset. It sits inside the Aquarius constellation. Around December 26, Saturn passes close to the moon again, so late December gives another easy viewing moment.
Mercury Brings a Bright Morning
Mercury does not show up at night this month. Instead, it gives its best view before sunrise during December. This is Mercury’s strongest morning appearance of the whole year.
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To catch it, wake up early during the first three weeks of the month. Look toward the east-southeast about forty-five minutes before the sun comes up. Mercury looks like a tiny bright spot sitting close to the horizon.
Around December 7, Mercury reaches its biggest distance from the sun in the sky, which makes it easier to see and slightly higher above the ground, about ten degrees up. When Christmas arrives, Mercury sinks back into the glow of sunrise, so the early part of the month is the best time to find it.
Venus and Mars to Stay Hidden this Month
Venus used to shine as the strong morning star, but during December 2025, it disappears into the bright sunlight and becomes impossible to see. It will come back in late February 2026, when it shows up again after sunset in the west.
Mars also stays missing this month because the sun blocks it. Mars crosses solar conjunction in early January 2026, and this keeps it hidden for a while. It will return in early spring, low in the eastern sky during dawn.
