The Cold Moon is the last full moon of the year, typically occurring in December – unsurprisingly, perhaps, when you consider it's name and the timing of winter in the northern hemisphere. Here, we explain all you need to know about the Cold Moon, when it is and what it means.
When is the Cold Moon?
The Cold Moon is the full moon that traditionally occurs in December each year. This year's full Cold Moon will appear on 4 December 2025, and will be a supermoon.
Why is it called the Cold Moon?
The Cold Moon takes its name from the cold weather and long nights characteristic of winter in the northern hemisphere. It may not be the coldest month of the year, but it can feel that way after a long, mild autumn.
The Cold Moon is also known as the Long Nights Moon or Oak Moon. The term "Oak Moon" comes from the significance of the oak tree in ancient Celtic and Druidic traditions, marking the time when oak trees shed their leaves.
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Where is the best place to see the Cold Moon?
If the forecast is favourable, you should be able to see the Cold Moon easily from any remote area without too much light pollution. If it's overcast, it can be a lot harder to see – but you might still catch a glimpse through the clouds. Head to a national park, hill or coastal location for clearer, uninterrupted views of the horizon, where the moon will be rising or setting.
- Find out more about the Snow Moon
- Find out more about the Hunter's Moon
- Find out more about the Beaver Moon
Is there a spiritual meaning?
As the Cold Moon is the first full moon of winter, it is often associated with endurance, resilience and the knowledge and promise of brighter, warmer days ahead. It encourages us to get in touch with our inner selves and celebrate the warmth of human connections, even against the backdrop of the cold, dark days of winter.
More about the night sky
- How the Moon affects wildlife
- Moon names: your month by month guide
- Incredible natural phenomena to spot in autumn
- A beginner's guide to stargazing
Top image: The Cold Moon seen in the sky from Ely in Cambridge (credit: Getty Images)
