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How do rainfall levels differ between Karnataka’s coastal plain and the Maidan?

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Keshava temple — Karnataka Keshava Temple, Somanathapura, Karnataka, India.

Rainfall in Karnataka varies significantly between its geographic regions due to the state's climate patterns.

The coastal plain is the wettest part of the state, receiving as much as 160 inches (4,000 mm) of annual precipitation. In contrast, the Maidan—the undulating, eastward-sloping plains of the Karnataka Plateau—is much drier, with annual precipitation in its drier portions measuring approximately 20 inches (500 mm).12

Most of this rainfall occurs during the southwest monsoon season, which lasts from June through September.1