How does the water kept in earthen pot become cool during summer?

Question

How does the water kept in earthen pot become cool during summer?

Answer 1

The pot has small holes.when the air passes form the small poles the water present in the pot gets cool.
-Naveen

Answer 2

when we pour water into earthen pot, a small portion of the water fills and spreads all into the pours of the pot. the water then gets evaporated from the outer surface and takes away the heat thus making the inside water cool.

Answer 3

as my friends said above is right it absorbs the heat and water get cooled