The earth is divided into the northern and southern hemispheres and there is a big gap in temperature, climate and vegetation. The most obvious difference is the temperature difference between the northern and southern hemispheres. For example, China and Australia, when it is summer in China the temperature is about 30 degrees celsius. At the same time, it is winter is Australia with lows of 10 degrees Celsius.
Factors affecting the weather in various places include latitude, sea position, and terrain.
Looking at latitude, the temperature near the equator is high, and there is a lot of rain.
From land and sea locations, the temperature in the coastal area is cooler, because the air flows more near the sea and there is more precipitation. However, precipitation in inland areas is relatively small.
The topographical factor is because, in general, the windward slope is more precipitative than the leeward slope, and the temperature is naturally higher.
Because of these factors, temperatures around the world are different.