Will it be a White Christmas in Treharris?
Snow odds for Treharris, Wales, on Christmas Day 2026.
The historical picture
Over the 34 years from 1991–2024, Treharris has had a white Christmas about 1 year in 10: 3 of 34 years saw snow fall on Christmas Eve or Day. The most recent was 2009.
9%
White Christmas
6%
Snow on the Day
3%
Snow on the Eve
Christmases in Treharris, 1991–2024
'91
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White Christmas No snow
About Treharris
Elevation
159 m
Region
Wales
Model
1 km, in-house
Higher and more northerly places tend to score better, and Treharris sits at 159 m.
Nearby places
Frequently asked questions
- Will it snow in Treharris this Christmas?
- The current estimate is a 9% chance of a white Christmas in Treharris in 2026. This far out the number comes from our climate model; it sharpens on its own as the live forecast comes into range, within about a month of Christmas.
- How often does Treharris have a white Christmas?
- Over 1991–2024, snow fell on Christmas Eve or Day in Treharris about 1 year in 10 (3 of 34 years).
- When did Treharris last have a white Christmas?
- The most recent white Christmas in Treharris in our 1991–2024 records was 2009.