What is an average day like in the United Kingdom?

Answer 1

It is a maritime climate and there are big differences between North ans South of England. The North ,including Scotland and Wales and Northern Ireland is definitely colder and wetter because of more mountainous terrain. The South gets more days of sunshine and less rainfall. The winters are warmer now than the last century and snow in the South is now uncommon. The Summers are generally wetter with unpredictable long periods of dry days in Summer. Grey days are an increasing feature of this warmer climate.

Answer 2

Much the same as in any other Western country.