The West Highland Way in December is usually cold and wet. Temperatures during the day range from 2°C to 6°C, and at night they drop to between -2°C and 2°C.
Expect mostly cloudy skies with some sunny breaks. It often rains lightly to moderately, but heavy rain is also possible. Snow can occur, especially in higher or more open areas.
The weather can change daily, with some days seeing heavier rain or snow, leading to wet or icy trails. Rain and snow are more common in the middle and later parts of the route.
Overall, the weather is unpredictable but generally cold and damp. Be ready for quickly changing conditions, with a mix of rain, snow, and occasional sunshine.
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