Humidity (2000) is an album by the American ambient musician Robert Rich.

Disc one was recorded on April 2, 1998 at Stanford University’s KZSU radio station as part of their annual Day of Noise event.

The composition for track two of disc one was originally released on the 1993 multi-artist compilation DeepNet.

Track two of disc three was originally composed for Rich's 1994 collaboration with Lisa Moskow, Yearning.

Track four of disc three is a reworking of Rich's 1994 release Night Sky Replies.