What's the weather like in England in August?

In England, where we all believed in traveling last summer, the temperature in Edinburgh was almost between 15-25 degrees, and sometimes the temperature difference between morning and evening was quite large on hot days above 28 degrees. Wear a thin coat when you go out in the morning and evening, and just wear short sleeves at noon. It's cloudy in London, and there is basically no sun in London for three days.