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Australian Kids UV Sun Protection Calculator
Enter the current UV index to get SunSmart protection measures, sunscreen guidance and outdoor safety tips for children — based on Cancer Council Australia recommendations.
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6
High
UV protection guide
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SunSmart Five Steps
👕
Slip
Slip on clothing that covers as much skin as possible. Long sleeves and collars offer more protection.
🧴
Slop
Slop on SPF 50+ broad-spectrum water-resistant sunscreen. Apply 20 mins before going out. Reapply every 2 hours.
👒
Slap
Slap on a broad-brimmed hat. A bucket hat or legionnaire hat gives the best coverage for children.
🌳
Seek
Seek shade, especially between 10am and 2pm (11am–3pm during daylight saving) when UV is at its peak.
🕶️
Slide
Slide on wrap-around sunglasses that meet the Australian standard (AS/NZS 1067). Protect developing eyes from UV damage.
UV Index Reference
UV Index
Category
Protection required
Outdoor advice
1–2
Low
None for most — some fair-skinned people may need protection
Safe for most outdoor activities
3–5
Moderate
All 5 SunSmart steps recommended
Take protection during peak hours
6–7
High
All 5 SunSmart steps required
Seek shade between 10am–2pm
8–10
Very High
All 5 SunSmart steps essential — extra protection needed
Reduce time outdoors during peak UV
11+
Extreme
All 5 SunSmart steps — maximum protection
Avoid outdoors 10am–4pm if possible
Based on Cancer Council Australia SunSmart guidelines and World Health Organization UV Index standards. Check the daily UV forecast at the Bureau of Meteorology (bom.gov.au) or the SunSmart app.
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Australia has some of the highest UV radiation levels in the world due to proximity to the equator, the ozone layer, and clear skies. The UV index measures the intensity of UV radiation on a scale from 1 (low) to 11+ (extreme). In Australian capital cities, the UV regularly reaches 8–10 in summer and can exceed 13 during heatwaves. Protection is recommended whenever the UV index is 3 or above. The Cancer Council Australia recommends SPF 50+ broad-spectrum, water-resistant sunscreen applied 20 minutes before sun exposure and reapplied every 2 hours — regardless of the SPF factor. Children's skin is more sensitive to UV damage and sunburn in childhood significantly increases lifetime melanoma risk. Last updated May 2026.
The Cancer Council Australia recommends sun protection whenever the UV index is 3 or above. In most Australian capital cities, the UV index reaches 3 between approximately 8am and 5pm during summer, and for a shorter window in winter. In tropical regions (Darwin, Cairns), UV can remain at 3 or above year-round. Always check the daily UV forecast — cloud cover reduces heat but does not necessarily reduce UV significantly.
Cancer Council Australia recommends SPF 50+ broad-spectrum, water-resistant sunscreen for all skin types. Apply 20 minutes before going outdoors and reapply every 2 hours and after swimming or sweating. For babies under 6 months, avoid sunscreen and keep them in the shade and covered with clothing instead. For children 6 months and older, SPF 50+ is appropriate.
Yes. Up to 80% of UV radiation can penetrate cloud cover. A cool, overcast day in Australia can still have a UV index above 3. Cloud cover reduces the heat from infrared radiation (which makes you feel hot) much more than it reduces UV. Check the UV forecast, not the temperature or cloud cover, to determine whether protection is needed.
Yes. While darker skin contains more melanin and provides some natural protection, it does not eliminate the risk of UV damage, premature aging, or skin cancer. The Cancer Council Australia recommends sun protection for all skin types when UV is 3+. Children with darker skin may have a slightly longer time to burn, but they are not immune to UV damage and should still use sunscreen and protective clothing.
Vitamin D synthesis requires UV exposure, but the amount needed is small — typically a few minutes of incidental sun exposure on hands, face, and arms on most days in summer, slightly longer in winter. Sun protection during peak UV hours (10am–2pm) doesn't prevent the incidental sun exposure that produces adequate vitamin D for most children. If you're concerned about vitamin D levels, speak with your GP about a blood test.