high humidity
Technical and everyday term for a state of high atmospheric moisture. Often used in weather forecasts, product specifications, and health contexts.
It's muggy today because of the high humidity.
This plant prefers high humidity.
多湿 is a more formal or technical term for 'high humidity' or 'dampness', often used in weather reports or product descriptions.
Compound of 高 (こう, 'high') and 湿度 (しつど, 'humidity').