Temperature variation refers to the differences in temperature that can occur in a specific area over time or between different locations. These variations can be influenced by factors such as geography, season, and time of day. For example, temperatures tend to be higher during the day and cooler at night due to the sun's position. In addition, temperature variation can be observed between different climates. For instance, tropical regions experience relatively stable temperatures year-round, while polar regions can have extreme fluctuations between summer and winter. Understanding these variations is essential for fields like meteorology and climatology.