Smell the end of the melon. They should smell like fragrant flowers or the way you would think the melon fruit would smell. That’s how you know they’re ripe. If they don’t smell, you can let them sit out on your counter for a few days until they are just right.
Do not cut into them until they are ripe. They won’t ripen any further and will spoil and attract fruit flies.
Thank you for the question Matilde. I hate to see melon casualties!