Which climate zone can mostly be found centered along 30 degrees latitude?

Temperate climate can mostly be found centered along 30 degrees latitude.

Explanation:

There are Mediterranean climate, Steppe climate and china type climate which are found from Western to Eastern side of the continent between 30 and 45 degrees latitude. These zones are collectively called as Temperate region, some tropical climate characteristics are also found in some of the regions here.  It has moderate rainfall with mild to warm summers and cool to cold winters.