Was ist der Taupunkt?

What Is the Dew Point?

The dew point is the temperature to which air must cool for its water vapor to begin condensing into liquid water. It helps describe the actual moisture content of an air mass.

• Cloud formation: As warm air rises, it cools. Once it reaches the dew point, water vapor condenses and clouds can form.
• Dew point versus relative humidity: Relative humidity alone can be misleading when comparing air at different temperatures. In the video’s example, warm air at 35°C and cooler air at 15°C both have 50% relative humidity, but their dew points are about 23°C and 5°C, respectively. The warm air therefore contains more moisture despite having the same relative humidity.
• Glass demonstration: Moisture from the air condenses on a cold glass when its surface reaches the dew point. A higher dew point means the glass needs less cooling before condensation begins.
• How muggy it feels: The video says many people begin to find conditions humid at dew points of 16–17°C. Around 20°C, conditions often feel oppressively humid by Central European standards, though comfort varies among individuals.

Dew point forecasts and weather-station readings are available on Kachelmannwetter.com.

Researchers or sources featured: No researchers are named. The source mentioned is Kachelmannwetter.com.