Balmy is defined as something that is moderate and pleasant. An example of balmy weather is a beautiful day at the beach. (informal) Foolish; slightly crazy or mad; eccentric. Mild and pleasant.

What does it mean for something to be balmy?

English Language Learners Definition of balmy

of air, weather, etc. : warm, calm, and pleasant. chiefly US, informal : crazy or foolish.

Is it Balmy or Barmy?

BALMY is an adjective (a describing word) that means pleasantly warm. If you're tempted to confuse it with think L for lovely weather. “It's a beautiful BALMY summer day.” BARMY is a colloquial or informal expression for mad or crazy.