Why a thermometer does not tell the whole story

At 5 °C, strong wind can feel much colder than the same temperature in shelter. At 30 °C, humid air limits cooling from evaporating sweat. Calculations translate such effects into an apparent temperature in degrees Celsius.

Different methods answer different questions

  • Wind chill: How much does wind increase heat loss from exposed skin in cold weather?
  • Heat index: How does high humidity combine with heat under specified conditions?
  • Other methods: May also include radiation, clothing or the activity of an assumed person.

There is therefore no single formula behind every “feels like” display. Two providers can report different values for the same weather. Our weather display uses the comparison value supplied by its data provider.

Using the value sensibly

It helps compare weather conditions and plan clothing or activities. It is neither body temperature nor a measurement of your personal sensation. Sunshine, shade, wet clothes and exercise can change the situation considerably. A standardised model can only partly represent differences between people.

Back to Weather glossary

f2weather

Preferences

Your preferences stay on this device. No account needed.

Deutsch
Units and clock°C
Temperature
Wind
Precipitation
Air pressure
Distance
Clock