Factors affecting levels of UV radiation

Levels of ultraviolet (UV) radiation from the sun change throughout the day, every day, each month, each season, each year, across Australia.

The total amount of UV radiation present at a given location is affected by:

  • closeness to the equator
  • time of day
  • time of year
  • cloud cover
  • altitude
  • scattering
  • reflection.

Find out more about each of these factors by clicking on the headings in the diagram.

UV Alert

For: Melbourne, 13 Mar

Sun Protection required: 10:20 am to 4:40 pm

Alert: 7

Other locations around Victoria

What is the UV Alert?

Workplace education

Sunscreen for events

Shade funding suggestions

Facts and stats at a glance

Skin types

 

Slip on a Shirt Slop on Sunscreen Slap on a Hat Seek Shade Slide on some Sunglasses