UV index in Cape Douglas today

Cape Douglas (SA) is a coastal suburb at 38.0°S. Clear-sky summer peaks are typically 8–11 (very high to extreme), and the same UV that burns on the sand is still there on a cool, windy arvo. This is cool-temperate Australia: summer UV still climbs into the very high and extreme bands, and spring arrives earlier than the air temperature admits.

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

Today and tomorrow in Cape Douglas

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

When Cape Douglas needs sun protection

Sun protection is needed in Cape Douglas typically from October through March, and any spring or autumn 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

Local support in South Australia

Cancer Council SA: South Australian prevention programs and support services.

Frequently asked questions

When does Cape Douglas need sun protection?
Whenever the UV index is 3 or above. In Cape Douglas that is typically from October through March, and any spring or autumn day UV reaches 3. SunSmart and ARPANSA use the same rule Australia-wide.
Does Cape Douglas need sun protection in winter?
Not every day. Midwinter middays in Cape Douglas often sit below UV 3, but clear late-winter days (from August in much of South Australia) cross the threshold before the weather feels like spring. Check the live index.
Does the water make UV worse in Cape Douglas?
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