https://www.newair.com/blogs/learn/how-moisture-and-humidity-affect-your-cigars Informations about Cigar. Dangers of Excess Moisture Damp cigars are caused by storing or exposing cigars to excessive humidity, usually anything above 70-72 percent, which is the point at which cigars begin absorbing moisture rather than losing it to the surrounding air. Humidity is highest early in the morning when the temperature is closest to the dew point – the temperature where water vapor condenses into liquid. Humidity peaks during summer and falls during winter. Humidity also varies greatly depending on location. The average humidity in Las Vegas is only 30 percent, while in New Orleans, it’s 76 percent. During the summer, humidity there can reach 90 percent. Inclement weather is also a danger. Cigars absorb moisture very quickly in heavy rain, even if you’re standing under an awning. As little as five minutes in a rainstorm is enough to ruin an otherwise fine cigar. When cigars become da...