Winter weather in Wales is typically characterised by torrential rains, but you should be ready for snow as well. From time to time cities are constrained with coastal fogs. Uncertainty is the main weather feature. Very often Wales' capital is overtaken by snow accompanied by strong winds and sleet.
For the internal and the northern regions, the snow drifts are a more usual phenomenon. Winter in the southern and eastern coasts of Wales is quite mild; there are positive temperatures, as the sea has a softening effect on the climate.