When does Hart need sun protection?

Whenever the UV index is 3 or above. In Hart that is every day of the year. SunSmart and ARPANSA use the same rule Australia-wide.

Does Hart need sun protection in winter?

Usually yes. At 23.0°S, winter middays in Hart still commonly reach UV 3 or higher, the SunSmart threshold for Slip, Slop, Slap, Seek, Slide. Check today's live reading on this page before a long lunch outside.

Is UV worse in dry inland Hart?

Often the dose is higher than a coastal day at the same index, because there is so little shade or haze. At 23.0°S the sky is frequently clear, so the live reading on this page is what you get — not a filtered version.

UV index in Hart today

Hart sits in dry inland Northern Territory at 23.0°S, where clear skies and almost no shade make UV harsher than the already-high index. Summer middays typically reach 11–13 (extreme). This is tropical Australia: the UV index is extreme on most days and does not take a winter off.

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

Today and tomorrow in Hart

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

When Hart needs sun protection

Sun protection is needed in Hart every day of the year. Dry air and almost no natural shade mean the index on this page is the whole story — there is little cloud or tree cover to blunt it.

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

Local support in Northern Territory

Cancer Council NT: Prevention and support for the Top End, where UV stays extreme year-round.

Frequently asked questions

When does Hart need sun protection?: Whenever the UV index is 3 or above. In Hart that is every day of the year. SunSmart and ARPANSA use the same rule Australia-wide.
Does Hart need sun protection in winter?: Usually yes. At 23.0°S, winter middays in Hart still commonly reach UV 3 or higher, the SunSmart threshold for Slip, Slop, Slap, Seek, Slide. Check today's live reading on this page before a long lunch outside.
Is UV worse in dry inland Hart?: Often the dose is higher than a coastal day at the same index, because there is so little shade or haze. At 23.0°S the sky is frequently clear, so the live reading on this page is what you get — not a filtered version.