Moisture
Humidity
noun
A damp energy is a feeling of dampness. It is moisture and humidity.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Just be careful of the shortening, and the irregular reading for 気.
日本の梅雨は湿気が多いので嫌いです。
I don’t like the rainy season in Japan because it’s very humid.