A thirty year linear trend reveals that the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. has become steadily warmer, wetter and sunnier in the last 30 years. The latest 12 month average at the end of December shows that the UK is currently running close to average for sunshine at 102%, but 111% for precipitation, whilst temperatures for the last 12 months are +0.81°C above the 1991-2020 LTALTA Long Term Average. This is usually defined as a 30 year period by the WMO..