Know when to cover up

Hourly UV forecasts for anywhere in the world, and a burn time made for your skin. So you can enjoy the sun without the sunburn.

A sample summer day in Darwin. Drag the hand or tap the dial to explore.

Made for your time outside

UVLens keeps it simple: the UV right now, when it's strongest, and one practical tip for heading out.

UVLens home screen for Darwin, showing time to cover up from 8:50 AM to 4:50 PM and a UV dial peaking at extreme

Your whole day on one dial

Slide around the dial to see when UV peaks and when it's time to cover up.

My Skin screen with a personalised avatar, a burn time of 20 minutes and a button to start a sunscreen reminder

A burn time made for your skin

Take the short skin quiz to see how quickly you could burn, then set a reminder to reapply sunscreen.

UVLens showing no UV tonight under an evening sky

Plan tonight and tomorrow

Switch days to see what's ahead, with a sky that follows the time of day.

As featured in

  • The New York Times
  • Gizmodo UK
  • Today
  • BBC Science Focus
  • Mashable

With support from

  • Southern Cross
  • Callaghan Innovation
  • Banana Boat
  • Microsoft
  • Auckland Bioengineering Institute

Take UVLens with you. It's free.

Hourly UV forecasts, your personal burn time and sunscreen reminders, on iPhone and Android.

UVLens showing extreme UV of 12 at 12:30 PM in Darwin, with advice to bring sunscreen, a hat and sunglasses