UV index in One Tree Hill today

One Tree Hill in Auckland sits inland at 36.9°S, where dry air and fewer clouds often mean harsher UV than the temperature suggests. Summer middays typically reach 9–11 (very high to extreme). This is warm-temperate New Zealand: a long protection season from early spring through autumn, with clear winter days that can still burn.

Live reading · data by Open-Meteo · reference monitoring by ARPANSA

Today and tomorrow in One Tree Hill

Peak UV, temperature and conditions for One Tree Hill. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.

Weather conditions right now

Cloud and rain cut heat more than they cut UV. A partly cloudy day in One Tree Hill can still sit at protection levels. Why you burn on cloudy days.

When One Tree Hill needs sun protection

Sun protection is needed in One Tree Hill typically from September through April, and any other day UV reaches 3. Inland heat or a cool change does not change the UV index; go by the number, not how the day feels.

The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.

The UV scale at a glance

  • 0–2Low
  • 3–5Moderate
  • 6–7High
  • 8–10Very high
  • 11+Extreme

Frequently asked questions

When does One Tree Hill need sun protection?
Whenever the UV index is 3 or above. In One Tree Hill that is typically from September through April, and any other day UV reaches 3. SunSmart NZ and NIWA use the same UV Index scale as Australia.
Does One Tree Hill need sun protection in winter?
Not every day. Midwinter middays in One Tree Hill often sit below UV 3, but clear late-winter days (from August in much of Auckland) cross the threshold before the weather feels like spring. Check the live index.
Can you burn on a cool day in One Tree Hill?
Yes. UV is not heat. A cool, windy or lightly cloudy day in One Tree Hill can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.

Live UV nearby