The given line graph illustrates data about the mean temperature in three cities (Paris, Dubai, and Sydney) in different months of the year. Temperature is measured in Celsius degrees.
Overall, what can be seen from the graph is that the weather pattern in Sydney is quite the opposite of Dubai and Paris. Furthermore, Paris is the coldest city among the three.
To begin with, the temperature in Paris stood at 5 degrees in January. After that the amount of degree increased gradually until July. It was peaked at 20 degrees in July and August. Following this, the temperature decreased to 5 degrees in December. In contrast, the weather of Dubai constituted 19 degrees in January. This rise continually from the beginning of the year to reach a peak in August. The highes temperature in Paris and Dubai are 20 and 36 degrees respectively. Afterwards, both cities became colder and the temperature fell steadily. As can be seen, the differences in temperature between August and December in both Paris and Dubai are the same 15 degrees Celsius.
Regarding Sydney, it witnesses 24 degrees temperature in January. From there, the temperature drops continuously before going down to the lowest point of 14 degrees in July. The five remaining months see the temperature increase dramatically, to reach 23 degrees by the end of the year.