Edinburgh is located in Scotland, which is in the northern part of the UK. Cornwall is located in England, which is in the southern part of the UK. The further north you go in the UK, the colder it gets. This is because the UK is located in the Northern Hemisphere, and the Earth's axis is tilted towards the sun. This means that the sun shines more directly on the Southern Hemisphere during the summer months, and more directly on the Northern Hemisphere during the winter months. As a result, the Northern Hemisphere is generally colder than the Southern Hemisphere.
