UV Index & Sun Exposure Calculator

The UV index is a scale that measures the intensity of ultraviolet radiation from the sun. UV 1–2 is Low (minimal risk), 3–5 is Moderate (some risk), 6–7 is High (high risk), 8–10 is Very High, and 11+ is Extreme. In Australia, UV commonly reaches 10–14 in summer, especially in northern regions.

UV is highest between 10am and 4pm, typically peaking around solar noon (12–2pm). In summer, most of Australia regularly records UV 12–14+. Even in winter, southern cities like Sydney and Brisbane see UV 3–5 at midday — enough to cause sunburn with extended exposure.

Sunscreen should be reapplied every 2 hours when outdoors, and immediately after swimming, sweating heavily, or towel drying. Water-resistant sunscreens maintain some protection during swimming but still need reapplying. Apply generously — most people apply less than half the amount needed for full SPF protection.

Australia and New Zealand have the highest rates of melanoma in the world. Approximately 2 in 3 Australians will be diagnosed with skin cancer by age 70. Melanoma is the most common cancer for Australians aged 15–44. The SunSmart "Slip, Slop, Slap, Seek, Slide" message remains the country's primary public health campaign.