UV index in Helena Bay today

Helena Bay sits on the Northland coast at 35.4°S, where sand and water bounce extra UV onto uncovered skin. Sea breeze cools the air, not the ultraviolet: summer middays here 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 Helena Bay

Peak UV, temperature and conditions for Helena Bay. 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 beach day in Helena Bay can still sit at protection levels. Why you burn on cloudy days.

When Helena Bay needs sun protection

Sun protection is needed in Helena Bay typically from September through April, and any other day UV reaches 3. On the water or the sand, reflection can lift your dose even when the forecast UV already looks high.

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 Helena Bay need sun protection?
Whenever the UV index is 3 or above. In Helena Bay 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 Helena Bay need sun protection in winter?
Not every day. Midwinter middays in Helena Bay often sit below UV 3, but clear late-winter days (from August in much of Northland) cross the threshold before the weather feels like spring. Check the live index.
Does the water make UV worse in Helena Bay?
It can. Sand and water reflect ultraviolet, so skin that is not covered (including under the chin and on the tops of feet) picks up extra dose on top of the direct sun. The live UV index on this page is the sky reading; reflection is on top of that.

Live UV nearby