Does the weather change greatly in Lijiang and Dali in Yunnan during the day and at night?

Dali and Lijiang belong to plateau areas, and the weather changes during the day and night are the same as those in the mainland, not too big, but the temperature changes greatly. During the day, the temperature will be very high in the sun and the skin will be very hot, so use sunscreen; However, the temperature will drop rapidly after nightfall, and the temperature difference will exceed 10 degrees. Even during the day, the temperature difference between the sun and the shade, as well as indoors, is very large. Therefore, there is little air conditioning in these places. When people feel hot, they just need to go indoors or in a cool place.