When does Knuckey Lagoon need sun protection?

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

Does Knuckey Lagoon need sun protection in winter?

Usually yes. At 12.4°S, winter middays in Knuckey Lagoon 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.

Does the water make UV worse in Knuckey Lagoon?

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.

UV index in Knuckey Lagoon today

Knuckey Lagoon (NT) is a coastal suburb at 12.4°S. Clear-sky summer peaks are typically 12–14 (extreme), and the same UV that burns on the sand is still there on a cool, windy arvo. 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 Knuckey Lagoon

Peak UV, temperature and conditions for Knuckey Lagoon. 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 Knuckey Lagoon can still sit at protection levels. Why you burn on cloudy days.

When Knuckey Lagoon needs sun protection

Sun protection is needed in Knuckey Lagoon every day of the year. 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

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 Knuckey Lagoon need sun protection?: Whenever the UV index is 3 or above. In Knuckey Lagoon that is every day of the year. SunSmart and ARPANSA use the same rule Australia-wide.
Does Knuckey Lagoon need sun protection in winter?: Usually yes. At 12.4°S, winter middays in Knuckey Lagoon 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.
Does the water make UV worse in Knuckey Lagoon?: 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.