Updated: 8:19am on 17/4/25

5 Day Historical Data

Terminology and definitions

Apparent temperatures- The use of additional weather data to calculate what a human body perceives the temperature to be in those conditions can be given as Wind Chill, Heat Index and Temperature/ Humidity/ Sun/ Wind (THSW) Index.

Wind Chill- Our perception of air temperature is affected by speed of the wind blowing over our body. When there is no air movement an insulating layer of air warmed by our body gives us some protection from cooler air molecules. The faster the wind blows, the faster heat is carried away and the colder you feel. Wind has a warming effect at higher temperatures.

Heat Index- Heat Index is a combination of temperature and humidity to calculate an apparent temperature of how hot the air actually feels.

Temperature/ Humidity/ Sun/ Wind Index- THSW Index uses the Heat Index plus the warming effects of the sun and the cooling effects of the wind to calculate an apparent temperature of what it feels like out in the sun.  

Humidity- The amount of water vapour the air can contain varies with pressure and temperature. Humidity refers to the amount of water vapour in the air. Relative humidity is a reading which reflects the amount of water vapour in the air as a percentage of the amount the air is capable of holding at the current temperature and pressure.