UV Index

Licence type: 
Open for any use
Service type: 
Graphics / Interpretation / Visualisation
Platform: 
Climate
Research Subjects: 

Plots of today's UV index are available in graphical form for Auckland, Wellington, Christchurch, Lauder and Invercargill.

The UV index (UVI) is a standard measurement of erythemal (sun-burn causing) UV intensity that gives a more objective measure than the old “time to burn” (which cannot account for skin tone). The scale is open-ended, but a UVI of greater than 10 is extreme and a UVI of less than 3 is low. For clear skies, the UVI depends mainly on the sun elevation angle and the ozone amount