Niiskuskülmavi

Niiskuskülmavi is a term used in Estonia to describe a specific type of cold weather characterized by high humidity. It's not a meteorological term with precise scientific definitions but rather a common descriptor for a feeling of penetrating coldness that is amplified by moisture in the air. This sensation is often associated with temperatures hovering around freezing, where the cold feels more intense than dry cold at the same or even lower temperatures.

The phenomenon occurs when water vapor in the air comes into contact with the skin and clothing. As this moisture evaporates, it draws heat away from the body, creating a chilling effect. This is why niiskuskülmavi can feel significantly colder than a crisp, dry winter day, even if the thermometer reads the same. It can make outdoor activities uncomfortable and potentially lead to quicker body heat loss.

Factors contributing to niiskuskülmavi include proximity to bodies of water like the Baltic Sea or large lakes, which release moisture into the atmosphere. Weather systems bringing rain, sleet, or snow can also contribute to the increased humidity. The feeling is subjective and can be influenced by individual perception and clothing choices. Proper layering of clothing, especially moisture-wicking materials, is often recommended to combat the effects of niiskuskülmavi.