Dew Point Calculator

Humidity & Comfort Analysis

Calculate dew point temperature, heat index, humidex, and analyze comfort levels based on temperature and humidity.

Weather Conditions

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0% (Dry)50%100% (Saturated)

What is Dew Point?

Dew point is the temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid water (dew). It's a key indicator of humidity and comfort levels.

Dew Point Guide

< 10°C: Dry and comfortable

10-15°C: Comfortable

15-20°C: Slightly humid

20-24°C: Humid, uncomfortable

> 24°C: Very humid, oppressive

Understanding Dew Point

The dew point is the temperature at which air reaches 100% relative humidity and water vapor condenses into liquid.

Key Points:

  • Higher dew point = more moisture in air
  • Dew point never exceeds air temperature
  • Better indicator of comfort than relative humidity
  • Used in weather forecasting and HVAC
  • Important for condensation prevention

Applications

Meteorology:

  • Weather forecasting and analysis
  • Fog and precipitation prediction
  • Aviation weather reports

HVAC & Building:

  • Air conditioning system design
  • Condensation prevention
  • Indoor air quality management
  • Mold and mildew prevention

Comfort & Health Guidelines

Optimal Conditions:

  • Dew point: 10-15°C (50-60°F)
  • Relative humidity: 30-50%
  • Temperature: 20-24°C (68-75°F)
  • Good air circulation

Health Concerns:

  • High humidity: Mold, bacteria growth
  • Low humidity: Dry skin, respiratory issues
  • Very high dew point: Heat stress risk
  • Monitor indoor conditions regularly

Recommendations:

  • Use dehumidifiers if too humid
  • Use humidifiers if too dry
  • Ensure proper ventilation
  • Monitor with hygrometer