Christmas Day 2025 Weather. The december weather forecast for 2025 reveals a slow start to winter this year. Initially it's a case of looking at analogue years, in other words finding the best matches with 2025 and seeing what the weather was like at christmas in each of them.
The rest of 2025 doesn’t look all that cold, until the final month. Since 1960, around half of the years have seen at least 5%.