The United Kingdom is located in the Northern Hemisphere and the Western Hemisphere.
To explain further, the globe is divided into two hemispheres by the equator, which separates the Northern Hemisphere from the Southern Hemisphere. Since the UK is positioned north of the equator, it falls into the Northern Hemisphere. Additionally, the Prime Meridian, which crosses through Greenwich in London, divides the Eastern and Western Hemispheres. Since the UK is located to the west of the Prime Meridian, it also lies in the Western Hemisphere.