What are the factors which influenced the climate of the UK?

What are the factors which influenced the climate of the UK?

（1）The surrounding waters tend to balance the seasonal differences by heating up the land in winter and cooling it off in summer. As the sea heats up and cools off relatively slowly it brings warm air in winter and cool air in summer.
（2）The prevailing southwest winds or the Westerlies （winds which come from the west） blow over the country all the year round, bringing warm and wet air in winter and keeping the temperatures moderate.
（3）The North Atlantic Drift, which is a warm current, passes the western coast of the British Isles and warms them.